His success is like the best case study in the world of how our current economic system is solely for the benefit of a privileged few.
He is obviously a liar, a conman and morally suspect. But he has mastered the art of lying in a way that people want to believe. So much so that he can separate fools from their money to the tune of billions.
When you can do that, every economic institution on the planet wants a piece. It's a firehouse of ill gotten cash, and those supporting his staggering rise to power are there to grab a bit of filthy lucre for themselves. It's a wealth transfer than comes along maybe only a few times in a generation.
Everyone knows he's a complete fraud even as they enable him to pull off all these stunts.