How come people are so hard on one another? T. S. Eliot said, long ago: “Half of the harm that is done in this world is due to people who want to feel important. They don’t mean to do harm — but the harm does not interest them. Or they do not see it, or they justify it because they are absorbed in the endless struggle to think well of themselves.”
I pulled the quote from http://www.nationalreview.com/articles/304288/legislative-dishonesty-thomas-sowell.
Oh. The other half the harm that people do comes from pure malice.
As between the two, I'll choose to deal with a malicous weasel before I want to hang with a self-congratulatory altruist. They're both evil but you'll meet a higher class of evildoers among the weasels.