I can understand your feelings, and he is a bit contradictory in the sense that he has stated publicly that governments are not the best enablers for certain projects. He didn't give any examples, but I for one am convinced their foundation did way more with every dollar it invested in Africa than the UN or "the government" would have done with $20. In any event, he'll eventually will walk the walk in terms shedding most of his fortune: https://givingpledge.org/