Well, you referred to my country so I feel as I have to give an answer.
Please note that this is based on my very personal opinion and that part of it is a bit superficial and based on some stereotypes.
First: there is a reason why women look better in the rigth "wing". They hired women not for the ideas but for the look: a significant number of them comes from the Show Bizz: pin up girls, show girls, even a "naked calendar" girl became a minister. She is not in the top most important position but she is there as part of government acting quite stupidly and having articles on foreigners magazines (german Bilder) as the "cutest ministress" (that sounded very sarcastic). You can see her "pictures" at
http://images.google.com/images?client=opera&rls=en&q=carfagna&sourceid=opera&ie=UTF-8&oe=utf-8&um=1&sa=N&tab=wi

Why all those show people?
Well, they come from TV, so Berlusconi knows them and trust them (and more than that, manipulate them).
Then superficial people could find them funny, attractive or whatever and they think this a good reason enough to vote the specific party.

Then, in general, (at least in Italy) rigth parties tend to see women as an empty "beautifull box" that needs to look perfect all the time despite age. Often "perfect" means accordingly to "today" stereotype. To be able to fit it, many rigth wing women (especially in the italian parliment) had plastic surgery or whatever, to become perfect....
Ok, ok, I guess I pushed too mutch!
But maybe you can remember what Berlusconi said about the finnish (woman) president. He said that to reach his goal, he had to flirt with the woman as it was an extreme effort since she is not that beautiful.

Or rigth wing politician said that the only reason why there are not many women in politics is because they are too busy taking care of kids and so it must be....

Second, there are several women that are "left wing" (even if this term is really too strong in today's politic scenario) and they look just beautifull without needing any surgery plus I belive they'll get old with more wrinkles but more expressive eyes :P