That's what I was going to say. It's a little bit like looking into the eyes of a lizard and trying to understand what it's thinking, or trying to understand 4 dimensional space. Most people including me just can't conceptualise it. However, if you have complete and utter disregard for everyone else... and I mean you just can't muster up a single neuron's worth of compassion, then these guys are a stratospheric success.