10 Most Heroic Things The Suicide Squad Have Ever Done
7. Killer Frost Refusing To Kill
It's incredibly lucky that Killer Frost is a character that wants to do good, because otherwise she could go on a murder spree the likes of which even major villains could only dream of. This is proven especially true when - after a solid beatdown of a mind-controlled Justice League - Frost refuses to kill the man who had been controlling them.
Frost has no reason not to, and in fact actively needs to in order to not freeze to death - but chooses not to, proving that sometimes 'Killer' is just an unfortunate nickname.
This act is considered so heroic that, in the aftermath, Frost is moved to Gotham by Batman in an attempt to let her try and do some good in the world. If respect and help from Batman isn't enough to show a character is capable of good, then literally nothing else - in the comic or real world - is.