I think he has a realm of wealth that the public is not privy to as well as an agenda to enrich his contemporaries. A fall guy can't be controlled by proxy of his ignorance since it is not a state that can be guaranteed and if that person in that position of power becomes privy to it he could turn the tides on the manipulator.
There are several organizations whose members in public positions are more loyal to it than the people they serve and these secretive alliances exist and contribute to phenomenon like a deep partisan divide because it allows them ultimately control through their maintained allegiance.
A fall guy is not indispensable and can be made to fail by a single bullet, and then replaced by a new actor that is more in tune with what the major corporate interests want to gain or protect.
For lesson 101 on this all you have to do is look at JFK, and the reasons why he was 86'ed and replaced by LBJ.....so if the current POTUS does not tow the corporate line, he may well be the fall guy for the next POTUS.