I don't want a society where you have to be a hero to produce mass benefit to others. I want a society where greedy people feel like they have to serve the needs and wants of others to fulfill their greed.

I don't know to what extent Buffet does it. Nor does our current quasi-fascist society where the government is highly embedded with industry and regulating who is the winner and who is the loser and then taxing/inflating the working class to make sure they stay afloat.

But in the idealistic version of America, it is supposed to be a place where becoming a billionaire means you are not just producing billions of profit for yourself, but billions of value for others. That every deal, both sides are better off. This is what we aspire to, the whole ideal towards voluntary trade and capitalism as a method a tide that rises almost all boats and at the very least doesn't involve sinking another boat lower.