I am convinced one of the most radically positive things you can do as a middle class/wealthy person is provide a little seed capital to start a worker-owned cooperative. Groceries, community pharmacy, medical office, gym, local newspaper, co-housing, whathaveyou - a lot of the folks who could benefit most from a co-op don't have the $ to start one even if they can contribute sweat equity.
Start something that frees us all from the rapacious corps & plutocrats.