In all seriousness, who are the women who are worthy of money? I find it difficult to really even find men who are worthy of currency except those already on it. Susan B. Anthony has been on money for damn near 40 years.
The Republic of Venice banned the practice of putting the faces of Doges on coins because they believed it to be in violation of republican values and encouraged autocratic behavior from their rulers.
I believe there were several riots over the practice some time in the early modern period that prevented a dead Doge's image from being put into circulation.
Naturally I feel the same way towards our money. No people, put images on instead.