If you have a friend who is pushing for greatness, respects you and like having you around, most especially if he is richer than you and you know your money can’t help him, the least you can do is to be valuable around him and support what he finds purpose in, his skill. That way, it becomes a system of mutual benefits and not a parasitic one. They’ll value your presence and friendship more. Don’t just be the guy who takes off people, give too. Be valuable in your circle!