Some people pay their dues with their lives and lifestyles. If you devote yourself to this style of music, you're excluding yourself from other, better-paying gigs and communal respect. Didn't Ornette regularly get beat up for playing in this style before he went to L.A.? I'd give the same kind of props to the ESP guys.
However, this type of respect has its limits. One could give Jandek the same sort of "respect," but like Ornette, Dolphy, and a lot of the ESP guys, I don't want to spend a lot of my time actually listening to it.