Well…there is “healthy” narcissism , which is a good self esteem, taking care of yourself, having boundaries, not being a neurotic people pleaser, and then there is malignant narcissism, which is at the far end of the spectrum.
The pathological narcissist is not just self absorbed, they are also compulsive liars, cheaters, manipulators, that lack empathy and see others as extensions of self, objects, and cannot handle the slightest criticism or confrontation on their behavior and certainly cannot empathize with the cause & effect of such.
They use others without a bit of shame or conscience.
As with anything it is a matter of degree.
The insecure facebook narcissist that needs a steady stream of attention and admiration may or may not morph into fullblown NPD.
There is a huge difference between occasional moments of self centeredness and longstanding patterns of behavior.
Everyone likes attention, feedback, enjoys sharing their creative side, but this is a far cry from the pathological narcissist whose entire sense of self and identity DEPENDS on a constant stream of attention and admiration from outside themselves.
A “normal” person may enjoy being complemented on their writing or artwork, or other accomplishments but a narcissist NEEDS the vainglory to feel that they actually EXIST.
Extreme narcissism is a serious emotional health issue that has far reaching ramifications for our culture and society and the individuals that are abused by these types. It is no laughing matter, these people can do serious harm.