Zuko’s decision to join Team Avatar and warn them about Fire Lord Ozai’s plan to destroy the Earth Kingdom may have saved millions of Earth Kingdom citizens.
Aang figuring out how to defeat the Fire Lord:
When Aang ran off during Parts 1-2 of “Sozin’s Comet,” he consulted the previous 4 Avatars about the moral dilemma he was facing: how to defeat Ozai without killing him. As a fellow Air Nomad, Avatar Yangchen shared Aang’s belief in the sanctity of life, but persuaded him that as the Avatar, he needed to put the world first. So initially, Aang concluded that he had no choice but to kill the Fire Lord.
Later, Aang was about to kill Ozai but decided against it because he had a better alternative. A lion turtle had given him the power of energybending, which he used to defeat Ozai by taking away his firebending ability instead of his life.
At both points, Aang made the correct utilitarian decision given his abilities and knowledge at the time.
Spoilers for Avatar: The Last Airbender:
Zuko’s decision to join Team Avatar and warn them about Fire Lord Ozai’s plan to destroy the Earth Kingdom may have saved millions of Earth Kingdom citizens.
Aang figuring out how to defeat the Fire Lord:
When Aang ran off during Parts 1-2 of “Sozin’s Comet,” he consulted the previous 4 Avatars about the moral dilemma he was facing: how to defeat Ozai without killing him. As a fellow Air Nomad, Avatar Yangchen shared Aang’s belief in the sanctity of life, but persuaded him that as the Avatar, he needed to put the world first. So initially, Aang concluded that he had no choice but to kill the Fire Lord.
Later, Aang was about to kill Ozai but decided against it because he had a better alternative. A lion turtle had given him the power of energybending, which he used to defeat Ozai by taking away his firebending ability instead of his life.
At both points, Aang made the correct utilitarian decision given his abilities and knowledge at the time.