Who, according to the author, is the hero in the Black America ghetto? Chapters 25-29

Here is the complete quote. It should explain your question:

"The needs of a society determine its ethics, and in the Black American ghettos the hero is that man who is offered only the crumbs from his country's table but by ingenuity and courage is able to take for himself a Lucullan feast. Hence the janitor who lives in one room but sports a robin's-egg-blue Cadillac is not laughed at but admired, and the domestic who buys forty-dollar shoes is not criticized but is appreciated. We know that they have put to use their full mental and physical powers. Each single gain feeds into the gains of the body collective.”