Women are empowered by modeling. They can define themselves however they want. Instead of objectifying their bodies, women can decide to look and act as they want, without the permission of the patriarchy. In a free society, people need to be able to express themselves however they want. Modeling can be very literating.
Yes, models are beneficial for society, because children and adults learn from watching models. Modeling also teaches the person modeling to behave appropriately, because other people are watching them and will act as they do. It is important that the person being modeled acts appropriately, because children and even adults learn from watching others. When a model is a good influence, they can be helpful in personality development.