Well, my sympathy is with the married punters on this issue. Many of them have kids, and many are now getting little or no sex at home.
If a man doesn't have the willpower or the inclination to remain celibate for the rest of his life, and chooses NOT to abandon his family, how does that make him a narcissist?
I also wouldn't call a man "unfaithful" if he chooses to remain in a sexless marriage. He is being faithful to his family, doing his duty as a father, regardless of who he's shagging. Whereas his wife is being unfaithful to HIM.