The benefit of having women in the cabinet remains to be seen for migrant, low-paid, or abused women. For now, it seems as though there is no difference: the powerful look after the powerful, with gender as an afterthought, or a bargaining chip when trying to deflect criticism for cuts that harm women.
[...]
[..] There is no intrinsic tendency for women to support other women when competing class and power interests offer far more fruitful personal rewards.
she also mentions that the women who get into these positions of power in the first place tend to be the ones who already fit the culture and won't ask for too much change (see: Margaret Thatcher)