Prety sure what Nigel is saying is not that narcissists are all empaths, but that senf described empaths are all narcissists.
Yes, this, although the research so far also supports the probability that narcissists often have situationally heightened skills of empathy, when it assists them in taking advantage of someone.
I'm about halfway through the. "... Luminet 2013" study. It's not over my head, but i lack certain symbol and term understanding. This one seems to be earnest so far, but I have no basis to juge and a long way to go reading and referencing what i can't understand as well as I'm able.
The association is legit where the strong talent exists or has been acquired. I strongly suspect that the condition of NPD is inducible by trauma, being not the only means of developing the condition sadly. Some folks seem to just "break bad" without being traumatized at all. In these induced cases the self-fixation has a deep root in the damage to the ego as far as I can tell. They can't feel good about themselves and need the outside reinforcement SO badly in order to delude themselves that they're just fine, perfect and uninjured. Anything that's a threat to this perception is subconsciously treated as dangerous and usually subject to a childlike outburst in this sort of narcissistic psychosis and anything that reinforces it is accepted with childlike glee. The whole Trump campaign epitomizes this so thoroughly that I would venture to say that Trump is likely a victim of violent abuse, likely suppressed beyond belief by now and unapproachable for him consciously without traumatic intervention.
The other kind remain an enigma to me. I think of them as "Nihilistic" narcissists as it would seem that the ideology appeals to them consistently in my personal experience, though no sure indicator. They just don't FEEL the same way that we do and I can "smell" it on a person sometimes in how they respond to the environment while I engage in conversation. This is where the emotional "skill" and empathic talent come into play. When you learn that there are tigers in the trees keeping your head down and grabbing arms is only prudent.
And yeah the over-aggrandized ego trip makes them self identify as "empathic" but SOME know better and they can be terrifying to deal with. This before considering other kinds of crazy compounding the confusion.
I'm going to be a while finishing the reading, but this is very interesting to me and totally worth it to hear what's to be said here on the subject!