10 Movie Villains Who Caused Their Own Defeats
3. Belloq, Donovan, & Spalko (Indiana Jones Series)
The Defeats: Belloq, Donovan, and Spalko are the villains of Raiders Of The Lost Ark, The Last Crusade, and Kingdom Of The Crystal Skull, respectively, and all three are killed by supernatural or extra-terrestrial forces.
Belloq has his mind blown (not in the good way) when he opens the Ark of the Covenant, Donovan drinks water from the wrong cup and shrivels up like a prune, and Spalko is sort of... disintegrated by aliens.
How They Caused Them: There's a running joke fans like to make about the Indiana Jones franchise, and when you actually look at it, it's not really a joke at all. Indy could literally stay at home and let the bad guys hunt the treasure/artifact/MacGuffin by themselves, and events would play out more-or-less how they do in the films: they would find said treasure, and it would kill them.
If Indy doesn't show up in Raiders, Belloq might still find the Ark, and if he did, he'd open it, killing himself. In Crusade, the same goes for Donovan, and in Kingdom, the same goes for Spalko. All of these bad guys would find their treasures eventually, even if Indy never showed his face.
Our hero does very little to stop them, and really, he doesn't need to: he just has to watch as their greed and lust for power leads them to their deaths.