I think that's what we're doing right now? The problem is that... well, we're going to worlds we don't fully understand, and dealing with people who all have their own goals, good and bad. Eventually, even with the best information and the best of intentions, something will happen that we didn't intend, and it may involve people dying. That doesn't mean we shouldn't try, though.

Also, just by the nature of our mission- we're not going to be there afterwards. So we shouldn't try to fix problems in a way that relies on our presence-stepping in to break up a fight or rescue someone is fine, but we can't make ourselves guardians or protectors.