There is a problem with categorising jokes. I'm very much in to comedy, I sort of almost study it. Too often people confuse a simple word play joke with sexism, racism, etc, when its not.
To be fair, the examples given are, I think, sexist, and there for titillation. These examples aren't jokes, they are, er illustration.
On the other hand, women are beautiful to look at, and using women in this way does, I'm afraid, help bind information in to the male head. That is why sex is used so much in advertising. Until men are completely de-sexed in some creepy way, I don't see this changing much.
I dunno, I just don't like the idea of giving up being a "man" and having man feelings. And I feel like this sort of feminism is all about women being women at the expense of men being men. None of that means women should be mis-treated in the work place, underpaid, or even slightly harassed. But I do think a bit of understanding both ways is required.
I say drop the stuff about images, and make damn sure women are paid properly and taken professionally seriously.
Is that not enough?