More on Narcissism

Introduction
Narcissist has been described as self-centred, ie 'me first', 'the world revolves around me'
"...define by a sense of grandiosity, continuous desire for admiration, arrogance, and fantasy of unlimited power and success......excessive need for praise..."
Laura Dowart, 2023

Generally narcissist are 'full of themselves', ie they have an
"..inflated sense of self-importance and their inability to cope with any sort of criticism or perceived attack on their ego..."
Tina Fey, 2023a

The extreme cases have narcissistic personality disorder (NPD)
"...mental health condition characterised by unrealistic sense of self-importance, excessive need for praise, and other traits can negatively impact one's relationships, self-image, and daily life......a person's narcissistic traits must impair functioning, present a variety of contexts, as well is negatively impact identity and the ability to have healthy relationships. The behaviours and attitudes are pervasive, inflexible and often there is no motivation to change. In fact, someone with NPD may not even recognise them as problematic..."
Laura Dowart, 2023

It is possible to have narcissistic tendencies and traits, but not NPD.

Narcissistic tendencies
"...- exhibit one or a few traits (eg believe others should admire them)
     - behaviour come and go, or only present in some situations ( e.g. only at work or school)
     - life and relationships not effective in a major, negative way; traits may even give an advantage (eg help them succeeded at work)
     - may be developmentally normal in childhood and teen years
     - can recognise trades is negative and be open to changing them
     - has/develop self-awareness and insight
     - can be empathetic but may not be at times..."
Laura Dowart, 2023

It is thought that narcissistic traits are associated with the likelihood of violent crime.
Generally narcissism exist on a spectrum with different levels of narcissistic behaviour.