Jon Kent's visit to the Injustice Universe has highlighted what separates him from the rest of DC's heroes and villains. His pacifist approach to heroics stands in stark contrast to the darker heroes of this timeline, even when it comes time to face off with them. He's even embraced a non-violent way to take down the team that recalls another hero's strategies but improves upon them.
Source：https://www.cbr.com/superman-jon-kent-justice-league-defeat-injustice-dc-comics/
