Again, we're all narcissistic at one time or another. Pathologizing common human traits so that we can explain away people choosing to be uncaring toward other human beings is consistent with prevailing cultural standards in the West. Which is why we continue to see unchecked privilege justified and mass murderers having a field day. We really can't afford to ignore the pervasiveness of narcissism when there are young males killing women for not dating them (see Elliot Rogers). 20 years from now people will be wagging their fingers at editors of the DSM the same way they do now over their classification of homosexuality as a mental illness. They manufactured an excuse and are culpable. You know who really interests me? Sociopaths. They move in silence and don't have any f's to give. My aunt works with them exclusively in her practice and they're a very interesting group. Real sociopaths - not individuals who read the dsm cover to cover and feign sociopathy, are extremely interesting to study.