Imagine if a Narcissist person reigns over you and give orders whatever he wants you to do!!?... How would it feel like to you??... Obviously, not pleasant.
Narcissism is something which is already present in every human. It then develops with time and life experiences. A little child has also some feelings of Narcissism because he observes the things around him very sharply and the Narcissism is everywhere in the present world.