Gates don't give a fuck. He's really wants to do the right thing and leave a solid legacy. Call him greedy, and he certainly was in the day, but he's no longer concerned with personal enrichment.

Money is a drug, rich people if anything are more greedy for each dollar they get than poor people because their tolerance goes up and they need more and more power/money to still get high.

Any amount of money billionaires like Gates steals from workers has to be just the beginning or else his high will peak and then fall and billionaires will not accept a cold brush with reality/mortality like that.