The most important and powerful women in world history are the wives of history's most powerful men.
That is a pretty ignorant thing to say.
Elizabeth I, Catherine II, Victoria and Thatcher all rode their husbands coattails? LOL!
The wives of men such as Julius Caesar, Charlemagne, Martin Luther, George Washington, or Nelson Mandela have been hugely influential in world history because of the influence they have held over their husbands. People's personalities and philosophies are shaped by the relationships that they have with each other, and no relationship is as intimate or an personal as one between a husband and wife.
And as we all know, those women are very influential.