Basically we'd feel unbearably sad all the time, if we'd care about things unfiltered. So filtering must go on. After all, the existence of feelings is to suppo

Basically we'd feel unbearably sad all the time, if we'd care about things unfiltered. So filtering must go on. After all, the existence of feelings is to support a social cohesion, which in turn enhances the chance of survival. It doesn't make evolutionary sense for feelings to not have bounds. So, there are bounds - feelings usually intensify with close proximity, and there is a bunch of mechanisms that quell feelings and empathy, like dissociation. What you're seeing is just these mechanisms in work. The very concept of fairness, and so unfairness, also only exists in humans. And we don't even agree on what that entails, just that all of us feel this to a degree.