People can display certain traits but would not have it as a personality disorder. To have NPD you would have to meet a good sum of symptoms, regardless on whether you have SA, are introverted or extroverted, etc.
Probably a troll question, but answering in a direct and watered down version anyway.
Why do you think it’s a troll question?
Genuine interested in the correlation
The bad narcissism is caused by a lack of self esteem, and they use a projection method to protect them of their insecurity.
I feel like the mechanism behind SAD is to cause anxiety to avoid certain scenarios
Btw by no means I am attacking anyone, I just read an article and was interested about everyone opinion. Everyone here is so easily drawn to conclusion.