Very astute observation, Alex; and exactly correct and on point. I agree completely with your comments re Bill Evans. Many great jazz musicians listened to, studied and were influenced by Classical composers and their concepts of harmony and dissonance. Bill Evans studied Classical piano extensively and is known to have been very fond of Debussy and Ravel. Some interesting reading:
http://www.telegraph.co.uk/culture/music/live-music-reviews/10721402/Bill-Evans-and-The-Impressionis...
http://www.billevans.nl/classical.htm
http://www.telegraph.co.uk/culture/music/live-music-reviews/10721402/Bill-Evans-and-The-Impressionis...
http://www.billevans.nl/classical.htm