it doesn't contribute to any inequality when the playing field is already unequal
because in that very same routine, Chris Rock talks about his fame and how in the neighborhood he lives in, his neighbor (who is white) is a dentist...he (at the time) was one of the best black stand ups on the planet, and his neighbor is a dentist, a plain old dentist
so to afford a house in that neighborhood, he had to be the VERY BEST in his field, but a well off white person wouldn't have a problem buying a house there