I think most libertarians honestly believe their ideas will help people, not hurt them.
See, this is a problem. I don't care what these people believe. We need only look at the very recent past to see that deregulation, privatization, austerity, demonizing pubic works, programs, and workers (all Libertarian initiatives) have and continue to be a disaster. How can this possibly be news to anyone?
Someone may or not have misguided beliefs but that doesn't mean they're maliciously non-sympathetic to people's troubles, which is the assertion of yours that what I was objecting to. I think even George W. Bush probably thought he was doing the right thing.
My point is, I think most people want to help others. Maybe I'm naive, but I've met a lot of people in my life and I've met very few that genuinely didn't care if they hurt others.