Reasons the internet is awesome: I just came across this Instagram of a quote from a WSJ review of a book about long-time Vogue and Allure editor Diana Vreeland...
"I loathe narcissism, but I approve of vanity."
...which lead me to this article from an academic journal about the difference between narcissism and vanity: academia.edu.
You were asking me the other day whether I thought your idea about "selfless narcissism" sounded right — I said it was at the time, but I actually think vanity might be more accurate.
(Skim the first few pages of the journal article; it reads quickly.)