Quote Originally Posted by GloatingSwine View Post
But at that point it doesn’t matter. Superman has achieved victory through the fear of superior force.

The methods of The Elite are vindicated, Superman is merely better at using them because he has the greater force available.
The question wasn't whether or not Superman could win, it was whether it was better for the public for him to use any means necessary to stop crime. The fight is only demonstrating to the public that a Superman who uses whatever methods he feels like is actually terrifying.

I don't think Superman is trying to convince the elites in that scene; he knows that they're just jerks pretending to be heroes. That's why he ends up permanently disabling Manchester Black's powers. He cares more about the public knowing why he doesn't kill villains for them.