I've always felt that the superhero policy of not killing anybody sacrifices pragmatism for nobility. Suspiciously, there is no capital punishment in their world either. If they don’t want to play god then that’s fine but surely they could invite Thor over and let him decide. Character transformation is wistful thinking; Poison Ivy hasn't turned over a new leaf, the idea of a labile Lex Luthor is laughable, and the lip on the Hobgoblin isn’t wobbling. Even basic imprisonment would have kept them in check if they could just stop trying to escape all the time.
