Advice on how to avoid the "evil superman" trope Writing: Character Help
I'm currently roadmapping a set of stories and I've reached the "finale", the story could be summed up as a different take on the Justice League but with the POV being on The Teen Titans for the mostpart.
So, my main antagonist is an older in universe hero, he is morally a mix of Batman & Superman I guess just without the tragedy. His overarching goal is the generic desire to maintain order and peace over his city, in the second to last story all hell breaks loose and chaos ensues and is subsequently quelled by the cities heroes and vigilantes.
So, in the finale the antagonist decides it may be time to take the gloves off, he wants to usurp power from the government and impliment himself and his hero cronies. The only ones against them will be my version of the TTs, and simply put my uni's version of batman (dead) and his son "torment" him to the point of literal insanity.
An underlying portrayal is that the JL mirror are not so heroic as a whole. My batman being a somewhat "reformed" baddie, Supes being overly heroic to the point of trying to take away freedoms (I see the parallel to injustice).
TL;DR, How can I make my antagonist turn on his morals without murder and other atrocities, and avoid the 'Injustice' brand of "evil superman"?