I am pushing the opposite of moral superiority: the recognition that we can't right every wrong in the world. We can't even right the wrongs in our own country. And if you look at conflicts like Sandinista-Contra, it's clear that we can't always decide what's right and what's wrong.
This is the human situation. Some people think humans can be perfected; some people don't (read Sowell's "A Conflict of Visions"). In order to avoid the constant political vacillation on what we should or shouldn't be doing in Country X, perhaps it's better to stay out of Country X's business in the first place.
BTW, a person can have an opinion without personal involvement. I think it's really cold on Jupiter, even though I've never been there.