He wasn't "all bad", he apparently was very good with animals, like his dog Blondie. He was a vegetarian. And that's probably everything which wasn't bad. For the rest it's all completely fucked up bad. No doubt about it.
Oh and I just remembered he was very good at giving directions. "were do I need to go?" "Take the third reich"
I thought I heard it was because of his love for animals. I googled and found This wiki page about it. TL:DR is it's not completely clear whether it's because of health reasons or because he's against animal abuse.