Why is everyone becoming so self-righteous?

It feels increasingly difficult nowadays to avoid righteousness; or, worse, self-righteousness.

- Steven Sloman

We are constantly being told what to do by those who supposedly have seen the light. For example, I was recently scolded by a colleague for suggesting that my own employer should aim to hire the best people, regardless of their sex or race. I was struck by the confidence that this person felt in instructing me on what I should value; it felt highhanded and uninformed.

Of course, there is a difference between righteousness and self-righteousness (though the slippery slope between them is short and steep). The advantage of righteousness is that it is justified, as in the case of a zealot who opens people's minds to the possibility that they are prejudiced. By contrast, lecturing a stranger on how to weigh the trade-off between merit and equity strikes me as self-righteous.

Why is there so much of this behaviour today? To address that question, we need to understand what makes people so sure of themselves. The answer may be a little surprising: Self-righteousness comes from judging the world by the perceived correctness of actions rather than by the quality of outcomes.