system
Given the following post, respond as if you're commenting on Reddit:
human
[DC/Marvel] Kind of a weird request, but what are some of the “nicest” things a villain has done?

Often heroes do questionable things to make them a bit more....imperfect and less of a boyscout. Mistakes happen and even the greatest of them have flaws. 

So how about the opposite for villains? Has a similar thing happened with villains where they reveal a moment of care? Something that, amidst their otherwise evil and dastardly self, stand out as moments of kindness, or simply contrast their usual tendencies? 

Not necessarily redeem them, but kinda make you realize they’re capable of good too and it’s not all just hatred in their hearts. Not really expecting a huge lost but would nonetheless love to know some characters.
gpt
On 9/11, several supervillains, including Doctor Doom, Kingpin, Magneto, and Doctor Octopus acted as first responders. Doom, Magneto and Doc Ock have also had their own heroic/anti-heroic turns.

At the end of Batman: Hush, Two-Face has his sanity restored and saves Batman's life.

Sandman made a legitimate attempt to turn good, even becoming a reserve member of the Avengers, until he was blackmailed by Doctor Octopus into being on his new sinister six. However, beyond bank robberies, Sandman hasn't been all that dastardly. There was one point where he kidnapped a young girl he thinks of as his daughter and acted as a giant sandcastle just for her, which isn't really nice, but it is showing love in its own twisted way.