“Self-enhancers are somewhat grandiose,” says Dr. George Bonanno, associate professor of clinical psychology and the lead researcher in the study. “They are preoccupied with themselves, they score high on measures of narcissism, and the research shows pretty clearly that they are annoying to be around.”
Even though the participants were randomly selected, in any group of people about 20 percent are likely to be self-enhancers. In this study, those who showed self-enhancement traits reported fewer post-traumatic stress disorder symptoms and were simply happier and more well adjusted over time than most others.
The advantages of being an asshole.