Excuse me? Did you just pulled this information out of your bum?
Composers have always been an elitist bunch because that's the nature of their business.
That's a nonsense, you're just repeating nonsense stereotypes and probably has never read a biography of a composer or music history book
We're not discussing the fruition of music, still nowadays the fruition of music depends on "money" because if you're a poor person living in 15 mq room and having not enough money to buy food you certain can't go to concerts, buy cds, have a television or a radio and so on
We're talking about the intention of the composers
This nonsense about composers writing music for their collegues is something that was born in the late 19th century. If you read the biographies of most composers before that sad era (even the less known ones) you will see many of them 1) had more respect for popular music than accademical one from which they got the inspiration to write their music 2) were more worried with expressing themselves than creating "something technically damanding" that the other composers could listen to
And they also were "popular" enough
Now to say that they were popular among the richest classes doesn't mean absolutely nothing and doesn't put them in the same situation of hatred idiots like Boulez who don't even write for themselves but just to show off who knows what. The point is that there was a strongest dividision between social classes but still the highest social classes rapresented a "populus" on their own making the music they used to listen to "popular" even though only in their context
But as I said it's not different from the modern social classes who can afford the media to listening to music and those who can't.
You're misusing the word educated here
I was saying that art, the real meaning of art, is using complex means to make thing simple. What many people here have said is that music is the "mean itself" in a way and that it's more important than mean and appreciating/understanding the mean is more important than the result. This is real lunacy. I don't have to know anything about perspective, color-mixing, special brushing effects, eye-horizont in order to appreciate a good picture and I don't need to know anything about good quality material, incisions, proper cooking, proportions and so on to appreciate sculpture. In fact an very very often recurring meaning of art is "making it complex behind the scenes" but making it appear as if it just "happened". No artist should feel the need to have people understand the means he/she used to reach a result, only the result means
At the same time I don't know to know anything about music theory, harmony, counterpoint to appreciate music. In fact it is known that classic music has not only a magnetic effect on babies but evern positive effect on them ... they're really appreciating it as art should be appreciated (with suspension of disbelief and judgement) and they do even if they do nothing about the means that make it possible to create music
What you say is not wrong but you're talking about "educated" when the context is actually "wealthy". Althought music lessons were spread enough among the high classes it was still not an universal knowledge meaning that many "educated" people having the financial mean to appreciate the non-paesan music were still mostly ignorant about harmony, counterpoint, cadences and what not and still were able to appreciate
In the 16h century it was polyphony which was just too hard to understand. A century and a half later you had people accusing Bach of putting too much 'art' in his music. Mozart? Too many notes. Beethoven? Too difficult to play. Brahms? Too formally confusing. Webern? Is that even music?
First of all there was not such an unanoymous criticizing as you want us to believe
There still were people who appreciated and people who didn't
But I also want to point out that there's still a huge difference between getting accustumed to something sonically new and accepting it only by knowing the theorical means behind it. For example I've been told many times that it was not easy to get accustumed to technicolor in europe televisions and it was almost painful to the eyes at the beginning. But eventually and quickly they got accustumed to it ... but that just involved physiological adaptation and not learning about the technical details of technicolors or how televisions worked and were built
The truth is that classical art is an elite. The composers we deem worthy of remembering today which form the current repertory of art music have achieved their status by elevating themselves above every single musician of their respective times through a process of natural selection. They have earned their position by pitting themselves against the very best and coming out on top, making history in the process. Back in the days where individualism reigned supreme and people cherished the notion of human achievement (remember the renaissance?) individuals of great distinction eventually earned a place in history.
Today however we live in the age of political correctness where everything has to be brought down to the lowest common denominator and it's all about making people feel good and appease the masses. Even mentioning the word 'greatness' will get you branded as an elitist, and then people wonder why there are no great composers anymore? What difference would it make? It's all about opinions and if it 'feels' good right? And who's to say that Breatny Spears isn't the Bach of our days? 
It has always been about opinions
You can't mix these different aspects of arts for christ sake
An artistic opera has always two side of the coin
One is as you say how it enriches music and its structure and creation
The other is "pure appreciation" it's shutting down judgement and just enojying it
That's why even those composers that "haven't made history" still composers wonderful pieces that it's a pleasure to listen at. The two components can coexist but you still have great music even when they don't.
That's why they say that art and harmony are both "artistic" concepts and "scientific" concepts. From one side they allow you to absorb the emotional content the author was trying to convert, from the other they allow you a technically analysis of the construction of the piece. These two aspects are indipendent
It's like cinema experts now saying that Alfred Hitchcok direction allows the analysis of a superb technique that has made the history of cinema and from which we've lot to learn
This is the analytic component
YET this doesn't forbid the same people from just taking a bowl of popcorn and enojying the movies themselves, the suspence, the emotions ... forgetting completely about directon, technique and what not
A person who insist mixing these two component almost claiming that one can't exist without the others is just fucked up
I know many people who listen to "classical music" and many of them don't listen to the known ones but to the almost unknown
The point is that within a certain period it is possible to create a lot of good music which is meaningful and rich of content. But the chance of making good music while allowing a technical "evolution" is for few ... and it's not for few only because few could affort that but also because of a temporal reason. Evolution in music technique often came spontaneously and it occurred always for a concomitance of technical, accademical and cultural factors ... it was almost never pushed or taken out of the blue. As such for the composers it was not only a matter of having the talent to make that evolution possible to also the lucky chance to be among that concomitance of factors.
I think we should also maybe resign to the idea that sooner or later no amount of technical evolution will be possible. And the amount of "forcing it" by always tring to show off something "fakely innovative" can't be called "musical evolution"
Yet I think that even if our musical means from now on remain identical and don't evolve this won't effect the music and it's reason to be and exist
P.S.
And by the way I'm rather familiar with the contemporary music scene and if there's no great composer anymore it's not because people can't recognize one but because if we're talking about musical appreciation then it is individual indeed and there's no universal good or bad and if we're talking about superior technique and music bulding mastery there's absolutely no one worth remembering for this at the moment
The nonsense mentality of mannerist avant-garde composers was already old 50 years ago now it is just rotten. If they almost created a dogma (ask the composer Elisabetta Brusa to have many examples) nowadays no one is afraid to see them for the mannerist idiots they have always been and hence the masterprice or composers and teachers and other accademical figures claiming their distance from that mindset
Down with closed minded professors who are unable to see the greatness of 50 cents...