system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Can there be forgiveness for evil superheroes?

I was just watching a clip on youtube from a movie I think is supposed to be set in the Injustice universe, in this universe Joker makes Superman murder Lois and it drives him to become a dictator who rules by fear and kills everyone who threatens his rule or breaks his rules. Batman summons in an alternate universe good Superman to fight him, and then an alternate universe Lois to come talk him down at which point he falls to pieces and says he just wants to die in penance for what he's done. Batman instead says he'll put him in a Red Sun prison. Hypothetically though would there be any precedent for rehabilitating Superman? At the end of the clip he's fully talked down, realizes the error of his ways, and feels insanely guilty about everything he's done. Realistically they're only imprisoning him out of a sense of revenge and anger; could they actually let him out of there at some point and just be okay because normal Superman is back again?
gpt
In a fairly recent Rebirth run, Clayface was reformed and recruited into the bat family, so even a prominent villain can be reformed to be a hero. 

Penance and redemption are not that unusual in DC, even if it's hard to imagine the specifics in a case as severe as Injustice.