“Billionaire philanthropist” is an oxymoron. A true philanthropist would never amass that much wealth in the first place.
@dramypsyd I wonder if people reading this are aware of the Giving Pledge? Warren Buffett and Bill Gates have gotten 236 people, mostly billionaires, to agree to give away at least half of their wealth. They've collectively given $600B. https://en.m.wikipedia.org/wiki/The_Giving_Pledge
(Major edits to my original post to be more helpful and less confrontational.)