Problem here is that you’re declaring the normal behavior of powerful captains of industry as a conspiracy. Rich people do rich people things, people that want to become leaders to leader things, that’s not a conspiracy, that’s normal life. Yes the rich people send their kids to ivy league school, and so do others, thanks to online stuff Harvard is projecting to have 10 million students soon. Yes they invest in similar things. Yes they belong to the same clubs. That’s just normal reality. That doesn’t mean they control things, that doesn’t mean they’re pulling the strings, that doesn’t mean there’s some massive conspiracy. It means people hang out with their own kind.
I hear you, rich hang with rich, sounds plausible.
I can’t explain J P Morgan founding the Council on Foreign Relations, though. That does not square as normal behavior for rich people.