I would guess there is a 95% chance he is doing this more money power and glory
Here's why I assign a lower percentage than that. I've been following Trump for a long time now. Way before his political run, and way before his silly reality show.
In those days I saw Trump as just another financial commentator. I read his guest articles in magazines such as Forbes, etc. Those articles were always solid and realistic. They made good sense, so much so that I'd quote them to friends of mine. I was that impressed.
But I will note that I was also impressed with Ronald Reagan, and then with Ross Perot. The first one turned out to be a great leader, the second a pathetic dud. So my track record is mixed.