system
Given the following post, respond as if you're commenting on Reddit:
human
[Injustice] What if, after killing the Joker, Superman did not jump off the slippery slope into villainy? Would Batman still have tried to take down Injustice!Superman?

Instead of forming the One-Earth Government and ruling the Earth with an iron fist, Injustice!Superman properly grieve the loss of his wife and unborn child, after killing the Joker. After doing so, Injustice!Superman continues to be the hero he should be, with an even greater (but pure) conviction against killing. 

How do the events of Injustice play out? Furthermore, what if Wonder Woman decided to form the Regime, while Superman joined Batman's insurgency?
gpt
If Superman stayed in character after he would probably turn himself in at Batman's request. He'd go on trial for Joker's death, and be given a light sentence because of who he is and who the Joker was. He'd sit in jail for a month or so (while Dick Grayson covered Metropolis for him) and then be released on parole at the first major threat that only he could handle. 

Batman wouldn't speak to him for a long time. Likely until the Joker inevitably returns.