Interesting passage: with rudeness, because while most of us deplore it, research suggests that we also see it as a sign of power. A study published in the journal Social Psychological and Personality Science indicated that the ruder someone acts, the more convinced observers become that he or she is powerful, and therefore does not have to respect the same rules the rest of us bow to.

Source: http://www.forbes.com/sites/daviddisalvo/2012/08/18/why-jerks-get-ahead/