Earlier quoted context omitted.
You're presuming a zero-sum balance between all causes political and/or charitable. I'd need to see this thesis more thoroughly fleshed out before I could comment further, but I think on the face of it it's grossly a flawed assumption. Maybe that's not what you mean though.
Only political causes. And only most of them. For example suppose that we want to do a cost-benefit analysis to see if convincing people to use contraception is a more effective charitable intervention than whatever Gates is doing. If the Catholic Church really hates contraception, they would oppose that. They might tell Catholic charities to refuse to work with Gates. They might spend a little money and a lot of che…
All sounds very far fetched.