Jeremiah Fink, essentially what you would get if you mix Andrew Ryan's parasite ideas, Fontaine's corruption and Augustus Sinclair's business savvy mind set and give the end result a suit, hat and mustache.
He's a jerk, but suave and holds a monopoly on most things in Columbia (ex. weapons, vigors, gears and the Handymen). He's also a liar and tends to false advertise things and uses the Founder religion just to earn a quick buck.
Essentially, he's what the monopoly guys in America might have been like during the roaring 20's with the car industry.