Chords don't give us feelings, we give chords feelings.
I saw some program where they tried this on some remote natural people in Africa with no previous exposure to western music. They were told to relate to pictures depicting happy or sad depending on the sounds they heard and they reacted mostly like anyone raised in the tradition would.
As for social culture impact in general; I think there is something to it with everything we feel and do, you just can't experience things in a social vacuum.
Not one or the other. It's both.
"This would mean that I was TOLD how to feel about music! Outrageous! Shocking! Unimaginably disappointing!"-Why is it better if nature "TOLD" you how to feel about music?
I don't like being told what to feel by people.
Don't worry, you don't need to be told...You've picked things up in a much more subtle way growing up