And yet... how many other billionaires do you see going out and saying that the capital gains tax rate is too low and climate change is the biggest threat to humanity.
There are a lot of very wealthy philanthropists, and I think that's because people seek meaning in their life once they no longer get benefit from earning more.
Conversely I could name on famous multimillionaire frequently in the news these days, that has a track record of treating charitable foundations as tax dodging piggy banks. So there are all sorts.