Not much of a Margaret Thatcher fan are ya.
Isolated case and male rule of the system was not disturbed. She did not replace men in the government, There have been great queens but they reigned and perhaps determined the directions for a short time but their passing removed the diamond that was supported and permitted by the mountain of granite. The US is coming to an appearance of female rule with the appointment of women and homosexuals wherever possible, but that will not long survive the passing of the homosexual president.