Cardiacs' Tim Smith, RIP Cardiacs' Influence Discussed & Covered by Napalm Death, Porcupine Tree, Voivod
If he accomplished nothing else besides (through his protege Wynton Marsalis and Ken Burns' Jazz) gaining traction for the idea that Duke Ellington was the Great American Artist, he'd be a legend.
Wrong thread, gonna give phanyes a heart attack (as I am by tagging him) EDIT: Whoops nevermind good edit!