Selflessness is an excellent antonym for narcissism (as an adjective), as well as empathy, while a good antonym for a Narcissist (the noun and disorder itself) would be Obsessive Compulsive Disorder (OCD). People with OCD have extremely sensitive and tender consciences and are thus known to be neurological opposites of Psychopaths and Narcissists. People with OCD are very guilt-prone and overly conscientious.
(Note that Obsessive Compulsive Disorder (OCD) is not the same thing as Obsessive Compulsive Personality Disorder (OCPD). So, when discussing narcissism as a character trait, the antonym "selflessness" is right on; but if referring to it as the disorder, Narcissism, then the opposite of Narcissism would be OCD. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.