Donald John Trump: villain or hero?

In President Trump, we see a different sort of leader from those we have had in the past. He has not come out of the traditional political machine, having never served as a US Congressman or a Senator. He is rich, with business interests across the world. He is loud and bombastic. He has absolutely no doubts about his ability to achieve results through making deals. The question is: "What sort of a president will he be?" Has Donald Trump gone into politics in order to increase his wealth, or has he an underlying altruistic intent? Will he be caught up by the political machines and, gradually, become seduced into believing that being re-elected is the only game in town, or will he surpass all expectations to become, even if unwittingly, the most powerful agent for positive change that the world has seen in a very long time?