system
Given the following post, respond as if you're commenting on Reddit:
human
Is it morally right for Earth superheroes to get involved in conflicts on other planets, or should they follow the Prime Directive?

Is it morally defensible to impose Earth values and Earth morality on the entire universe? Don't alien races deserve the right of self-determination?

Also, on a more practical level: without a full understanding of the culture, politics, or history of these places, aren't superheroes just as likely to make these situations worse? Especially since they don't tend to stick around after the initial conflict, to aid in the rebuilding process?
gpt
Morals are subjective. 

Since the universe outside Earth is generally proven to be a very dangerous place, the most effective decider of moral 'rightness' usually ends up being raw power.

There are an infinity of interstellar threats out there that don't care about such concerns, so anyone from Earth worrying about their moral effects on a society put themselves at a disadvantage to others who would sow disorder in those same places.

A hero has no business pondering what the effect is on a society when Mongul or Blastaar shows up to subjugate an entire planet. It's worse yet if something like the Red Lanterns, Doomsday, Pheonix Force or Galactus is coming and the society's entire existence is at threat.

After the primary threat is stopped, if the hero decides to stay around and talk about the consequences there's issues to be concerned about, but usually? The recipients of the help are so glad to be rid of the threat that they're not too picky about why or how the help came.