So you assume every time young women are staying with an old rich man, they have been extorted to do so?

Sorry, that seems extremely unlikely. I find it shocking that you think that way.

Just because somebody is rich also doesn't mean they can simply destroy other people's lives at will.

Btw I have personally witnessed for example young women courting old professors, who certainly didn't have any power to destroy their life. They did have some power to further their career, though.

Expect: yes, I think in most cases it is simply that the young women expect some advantage from the rich guy. Maybe just material things, or maybe just more fun. Maybe they enjoy riding on yachts more than riding on skateboards, or whatever.