Two good recent articles on this particular phenomenon, as old as feminism itself.
The first is from Slate, and particularly brilliant. http://www.slate.com/id/2256184. The second is from the Washington Post and equally lucid. http://newsweek.washingtonpost.com/onfaith/guestvoices/2010/05/sarah_palin_is_no_susan_b_anthony.html
Women who've not merely internalized patriarchy, (let's face it, it happens to the best of us) but also work to advance it, and then use it to oppress other women horrify me.