Do you understand what a narcissist is? What's your understanding of this

Vaguely. I think that what differs narcissists from other malignant personality disorders is their need to be admired. They need the audience and usually want to be perceived positively, to keep the mask of a good guy or someone successful, accomplished and powerful in public. Sociopaths aim to profit materially, they don't care about the prestige or opinions of other people unless bad rap would somehow threaten their wealth or anything they value and demand to have in their life.

How does that manifest itself in various people from various environments and social background, that's something more complicated, I think. I remember some case study that described a woman who was sending herself flowers to her job so that her coworker would think how much she was loved.