Extreme dislike of narcissists/people with npd. Is it justified?

For some reason I’ve always had an extreme dislike of people with high levels of narcissism and people with npd (I realize the two things are not necessarily the same). I think it’s because of the current state of the world and the fact that a lot of people in power/billionares have narcissistic tendencies. I feel like narcissism is a huge contributor to societal inequality and kicking down at people who have less than you. Is this dislike/hatred justified?