I actually think that Page 3 and anything else of that ilk can actually be insulting to men too, in a small way.
Let me explain...
My DH isn't interested in seeing pictures of women with their breasts out, he isn't someone who has any inclination to go to a lap dance club etc, it's just not his thing.
However, he works in finance (still a very male dominated sector), and there are a lot 'flash Harry' types in his field.
He used to be part of a team of these 'cads', who on a Monday morning would come in boasting of their weekend conquests, talking about women like they are pieces of meat. They were frequently looking at the Page 3 girl or magazines like Nuts, and almost every time they'd stick the paper/magazine in DH's face, 'here cop a load of that Kit'.
When he said he wasn't interested in leering at women, they'd question his 'masculinity', and on a handful of occasions his sexuality.
It got so bad, that he made a formal complaint, but it was hard for it to be taken seriously as the bosses were all 'flash Harry' types too.
Eventually, he managed to secure a job elsewhere, at a smaller organisation that isn't dominated my 'flash Harry' types.
I'm aware I've waffled, I apologise, but it was just something I wanted to say, after asking DH if he was happy for me to share this story with you.
Obviously the main issue is the effect Page 3 and its ilk has on women, I'm not trying to claim otherwise, I just thought it might be interesting to share another side to what this kind of thing can lead to.