Then why do men comprise such a majority of the world's greatest chefs?........
Because the women are off running the kids to school and back, doing the laundry, and cleaning the house to spend 10 hours a day cooking. ;-)
I think that is at least partially it. Women are scarce in the high levels of all career paths because taking those jobs requires a great time input, making it difficult for a woman to fit in pregnancy and child-rearing.