Just read Jonathan Lethem: The literary world is like high school. It inspired this comment:
Class assumptions are at the heart of the relationship between critic and artist: upper class artists are supposed to be above responding to their critics; working class artists are supposed to be incapable of it.
ETA: That's the old-school model, anyway. Maybe there's an improved version now.
ETA 2: Still teasing at this notion. Added this comment at the site: "Uh, that's "incapable" in the intellectual sense--working class artists aren't supposed to be analytical; their powers of creation are supposed to be pure, unsullied by academia. They're the "mumbling, dungaree-and-scuffed-workboot guys.""