system
Given the following post, respond as if you're commenting on Reddit:
human
[Dc Comics] With all Superman does for Earth, why doesn't he invest some time in bettering it technologically, medically, or pretty much any other way than punching out villains?

If the answer is that he does not want to mess with the advancement of the human race, then why bother doing any thing at all, save for maybe an intergalactic baddie every now and then?
gpt
This is answered pretty well in Red Son, actually.

Basically, the more Superman tries to help by solving problems, the more two unintended side effects occur:

1.  Humans depend on Superman more and more, and put less and less effort into solving their own problems, and

2.  The solution to each new problem requires more and more constant control by Superman.

For instance, let's say he can't cure AIDS.  But he could probably eliminate it within a generation by watching every single person who has AIDS (trivial for him) constantly, and intervening any time they would be about to spread the disease, via unprotected sex, accidental blood contact, etc.  Except that, horrifyingly, means Superman is constantly watching your every move.

In Red Son, Superman becomes the ruler of most of the world, and the resultant world is nearly crime-free, poverty-free, etc. - but it's also filled with people lobotomized by Superman in order to make them more pliant (for their own good) and every single aspect of the society is directly controlled by him.  It's peaceful, but advancement grinds to a halt and Superman ends up a dictator.