People are blind I guess. It's way too easy to manipulate a narcissist. All you have to do is play into their heightened ego and you can do whatever you want to them. Hell, I had a narcissist wife. I could plant ideas in her head and get her to believe it was her idea. Another fun thing to do wad to teach her a new word. She would use it over and over til I got tired of it and taught her a new one.