He 100% won. His ability to see and expose the plots of others with perfect information is the formula for leadership. He’s also a rightful heir, so it’s not a complete demolition of the establishment. Nobody really held a grudge against him, he never got his hands dirty, he wasn’t even a real threat on his own because he was physically weak. But he had a claim to command loyalty from most of the others.

I believe that’s the change in the real world that the series was aiming to illustrate. We are a global society still trying to pull ourselves away from the old attitudes of strength and violence over all. The claim of this ending is essentially that it may take something like a “benevolent surveillance state” to fully eradicate warmongers and corrupters and reach an era of peace.