lol I think there is value in a standardization of what is considered good technique, simply so that we are able to learn what works best for most people, however when there a those who find an unconventional technique and use it successfully you really have to look to the result to judge it, considering of course avoidance of injury as well. One must forget either that todays standard technique would not fit with the conventions a few hundred years ago.
Anyway, what about Theloniouse Monk for a wild technique. His playing could be surprisingly agile and although he might find himself a bit limited by some classical repertoire, his particular style of playing no doubt also contributes significantly to his distinctive and celebrated sound.