I agree that Trump is obsessed with money, but if he is a hound-dog he is a very bad one. Every investment he chases goes bust. That’s why he got involved with the Russians in the first places — American banks wanted no part of this loser.
Now he is working hard to turn America into a loser like his dumbass self, and Putin is excited to help him do it.
While I believe Trump can do all sorts of bad things for the US on his own, I still think the Russians got him alone, probably back around 2013, hypnotized him, and with post hypnotic suggestion have turned him into a real Manchurian Candidate type Russian operative.
I’m also certain that American spooks also suspect this, but until there is proof, probably never, the idea is too farfetched to even wisper.