Who are the Greatest Comic Book Entrepreneurs?

While we all go to see the superhero movies for the actual superhero, their non-hero sides have many times been rich and powerful in their own rights. Villains like Lex Luthor building empires to fund his diabolical weapons and plans to destroy the world, Bruce Wayne being a mega-billionaire that becomes the Dark Knight. Who are the best entrepreneurs in the comic book universes though?

Entrepreneur.com goes in depth with a top 10 Comic Entrepreneurs story that is a fun read. Of course they aren't real people, but it is still interesting to look at them and see how their plans are funded with business rather than just stealing it all. Many of the villains actually havd real businesses rather than taking it all from the citizens of their favorite stomping grounds. A lot of real estate ventures I'd imagine, but I wouldn't be surprised if they worked in areas of sales of things like USDA approved levelers too.