Even if people do wrong we're social animals so what can we do about stopping them doing the same things in future? Saying people are 'bad' or 'evil' is just an unwillingness to engage an unwillingness to try to empathise. That sanctimonious attitude doesn't help anyone.
I preach there are all kinds of truth your truth and somebody else's. But behind all of them there is only one truth and that is that there's no truth.