Nobody intervenes outside their domains. Every community takes care of their own domains. That's how it's done in anarchistic regions. It spreads as a culture, not as an imposition. "Murica police of the world" is not a winning strategy.
Don’t you think that it could be influenced but the conditions of the region? In example, the control of a scarce resource.
Yes but the question was about morality. I think that in a natural state people don't care much about what others do, sadly. See for example Israel genociding Palestine and Adam Curry saying (literally) "I DON'T CARE" in his latest podcast episode. "Justice" in its natural state only spreads through culture. Effective boycotts take a lot of time to develop.