Peter Singer is an Australian moral philosopher who has influenced Bill Gates (check out his Wikipedia page).
He has advocated a moral philosophy called "esoteric morality", which claims that it is "good" to do some things in secret which would not be "good" to do or advocate openly. See his paper "Secrecy in Consequentialism: A Defence of Esoteric Morality" if you want all the details of this.
He is also respected by the likes of Richard Dawkins, who says he is one of the "most moral people in the world". Check out this interview, in which Singer says that disabled people should be killed, which Richard Dawkins says is "completely logically consistent".
What do you know about him? Seems like he is a major intellectual influence on the global elite. He gives them a pseudo-philosophical foundation for justifying de-population.