Another example I used in the article, I got from watching the old movie Gandhi. The British - who are basically very moral people - were willing to assault Indians who just wanted to make salt in their own country. The movie dramatizes the scene of British soldiers striking down defenseless people. Why? Why would ordinarily decent human beings do that? Well, they wouldn't, unless they could be convinced that what they were doing was not oppressing an indigenous population, but upholding the rule of law.