Another aspect of the revolution was the rise of an anarcha-feminist women's movement, the Mujeres Libres. The organization, with 30,000 members at its disposal, set up schools to educate women and worked to persuade prostitutes to give up their way of life. The anarcha-feminists argued that overthrow of patriarchal society was just as necessary for personal freedom, as the creation of a classless society. To demonstrate this new sexual equality, some women even fought at the front (no more than one thousand) and several more joined women's battalions in the rear. However, Michael Seidman argues that sexism was still present - in some collectives women were still paid less than men and could be denied voting rights, while single women could be expelled from a collective (as they lacked a more productive husband for farm labor). Some sexist male leaders deemed women to simply be lacking in commitment to revolutionary principles. However, Seidman also argues that women could still benefit from the collectives; young women enjoyed the relative freedom from religious domination, particularly when it came to sexuality and education, that collectivisation brought to certain villages.