We humans have a dual nature—we are selfish primates who long to be a part of something larger and nobler than ourselves. We are 90 percent chimp and 10 percent bee. If you take that claim metaphorically, then the groupish and hivish things that people do will make a lot more sense. It’s almost as though there’s a switch in our heads that activates our hivish potential when conditions are just right.
The Righteous Mind: Why Good People Are Divided by Politics and Religion
by Jonathan Haidt
http://is.muni.cz/el/1423/jaro2013/SOC133/um/Haidt_-_The_Righteous_Mind.pdf