Another idea I had was for a character called Invictor--no relation to Doctor Invictus. Invictor has the FISS powerset (emphasis on the Strength) and truly believes he, above all others, is best suited to rule the world. Unlike all the other would-be world dominators, he seeks the mutual approval and acclaim of the people, rather than imposing his will by brute force. So he goes around doing your basic superhero deeds--rescuing people from disasters, fighting crime and supervillains, preventing disasters from occurring--everything PC heroes do. He may even offer to help the PC heroes on occasion. And when the press asks him for a statement after his latest super-deed, he will tell them that his wisdom and willingness to use his powers to help people and protect them from harm makes him the ideal person to rule the world.
His website lists his agenda for his rulership, and a petition page that visitors can sign if want Invictor to be ruler of the world. So far he has received over seven million signatures from all over the world--which has also attracted the attention of every hero team on the planet, not to mention every law enforcement and spy agency with skin in the game.