Which reminds me of this diagnosis:
Narcissistic Personality Disorder involves arrogant behavior, a lack of empathy for other people, and a need for admiration-all of which must be consistently evident at work and in relationships. People who are narcissistic are frequently described as cocky, self-centered, manipulative, and demanding. Narcissists may concentrate on unlikely personal outcomes (e.g., fame) and may be convinced that they deserve special treatment...
...narcissism is not the same thing as self-esteem; people who have high self-esteem are often humble, whereas narcissists rarely are. It was once thought that narcissists have high self-esteem on the surface, but deep down they are insecure. However, the latest evidence indicates that narcissists are actually secure or grandiose at both levels. Onlookers may infer that insecurity is there because narcissists tend to be defensive when their self-esteem is threatened (e.g., being ridiculed); narcissists can be aggressive. --Psychology Today
Also see: "Forever Six."
Hat tip: MOTUS.