The villain gets what they want. All of it.

Absorbing Man (Hulk 2003) tries absorbing Hulks rage and can’t contain it

Kai (Kung Fu Panda 3) tries to absorb the Dragon Warriors Chi and learns there’s levels to this

Soviet lady (Indiana Jones 4) aliens reward her with a request for returning their skull and she asks for all of their knowledge. She gets it and can’t handle the truth