Even superheroes need limits

"However... you can choose to join New Krypton," He-El said. Facing this Superman, He-El could not help thinking of the Superman in the New Krypton Universe who was his son. At first, his son Superman had strongly resisted the New Krypton Empire He-El had founded. He did not believe a brutal conqueror like his father could govern an empire well, and was convinced that he would subject humanity to tyrannical rule.