User blog comment:Dragon-Fox 7/Character Sheet/@comment-5651818-20170713034325/@comment-4867780-20170713035335

I'm not sure wh Jor-El would care about the people of Earth this much though, with his own world literally falling apart, everyone he loves dying left and right, and the future and very survival of his only son so terribly uncertain.

I guess it's just a plot hole due to the human-revolving nature of fiction.