There are egocentrics in every walk of life. Protestants, Catholics, Jews, Muslims, Blacks, Whites, Republicans, Democrats, and yes, even LoA people can be egocentric.
It doesn't mean that it's a principle tenet of their method. However, indeed, I have always beleived that those who talk incessantly about "getting what you want" through the law of attraction to be primarily egocentric. I simply avoid those people, as I do Scientologists.