If I could actually find a real Readen, I probably WOULD be loyal to him.
But men like that are just as likely to pop up in any field. I've seen them in business, academia, the military and in government service. I even know one who runs a union. I've seen some real shits in those fields, too. Character is not determined by ideology.
As far as your fearsome felonious fanatic financiers, I find it hard to believe that anyone who depends on "the system" as much as they do would be in such a hurry to undermine it. They're smart enough to know that riches and power cannot make you independent of civilization, they're only useful IN a civilization.