Ok, so that’s pretty much everything, but in the case of Sam Rockwell’s Justin Hammer, we’d safely assume his grudge against Tony is merely for existing.
What is it about Stark Industries that brings out the worst in the Marvel Cinematic Universe?
If Tony wasn’t around, he’d have the run of the world, and be free to do what he wants; and it’s that sort of character that Rockwell excels at injecting equal levels of charm, and sleaze, into.
Besides their near stranglehold on the business world, Tony’s smart-assed demeanor, and his status as a founding Avenger, what does the world really have to hold against the man and his kingdom?