There is no point in a hero without a villain.
Captain America is just a guy in a suit if he’s not championing the ideals of truth, honor, and freedom against someone who believes the opposite. Spider-Man needs to do more than web up muggers — he needs to take down the head honcho whose greed is causing all of the crime.
A good villain can make a hero more heroic by comparison. A bad one can feel like a total waste of a hero’s time.
Until Phase 3 of the Marvel Cinematic Universe, most of their villains felt like wastes of time.
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