With the number of narcissists I've seen be wildly successful, I have to disagree with you.

There is a very clear and well established path to the top for people who only care about themselves.

How are you defining successful?

So for the purposes of this I'm talking about success at work. Because that's what the article and discussion are about.

No that's not how I define personal success. But that's also not relevant to this.

This is true in life that most non narcissists figure out (including myself). Self actualization comes from helping others and less on yourself.