It's the law of supply and demand, dude. Think about it. Why would fashion designers spend more money on male models when women buy more of their products than men do? You ask questions without thinking things all the way through, or using verbs. Proportionally, the amount of male models to females models are equal to the revenue made from the products sold. It's what's known as "product equilibrium" in business. It's one of the first things learned in business classes.
Personally I refuse to model anything which is not mud encrusted.
Because we aren't as beautiful, or motivated to be. Normally.