Men don’t want to admit that men regularly rape women. To the men who have never raped a woman (as well as to those men who tell themselves that time they had sex with a barely coherent drunk girl wasn’t rape), rape is not a normal thing; it’s abhorrent behaviour that only really fucked up men do. So when accusations of rape outnumber a man’s perception of the number of victims there should be he has to do something to explain that higher number. So he decides the women must be making it up. And, really, don’t all women exaggerate everything?