Well, maybe you're one of those rare ones who are so mesmerizingly attractive that men are terrified of not having you think well of them.
But, more realistically, the only thing that can truly wreck a man's ego is to hear a woman - or women - say that his you-know-what is unable to provide any satisfaction.
Men don't consider that the slightest wrong. That - and only that - is the destroyer of male ego.
And every woman knows this.
The only defense a man has to it is if he knows from experience that she's lying. Far too many men aren't capable of knowing that, though.