One of the things I think virtue ethics gets right is that if you think, say, lying is wrong then you should have a visceral reaction to liars. You shouldn't like liars. I don't think this is irrational at all (the goal isn't to be Mr. Spock). Having a visceral reaction to liars is part of how someone who thinks lying is wrong embodies that principle as much as not lying is. If somebody claims to follow a moral principle but fails to have a visceral reaction those who break it, that's an important cue that something is wrong. That goes doubly for yourself. Purposefully breaking that connection by avoiding becoming indignant seems like throwing away important feedback.