"To what extent does advertising construct our ideas of gender?"

A few basic things I hit on while researching through this question

1. There is a distinct lack of black women in advertising, either being in the background or not being present at all
2. There is a distorted view of women or lack of women in advertising because only a 25% of the advertising directors are women (however it has progressed up 4% in recent decades)
3. Even when women are meant to be 'empowered' in adverts it still plays along their looks and the 'natural beauties' are still airbrushed and in proportion to be acceptable to our societal ideals of the female body. (whereas men are allowed to be disgusting...) 
   
4. Something makes me recoil in horror at trying to sell products through a 'real beauty campaign' - 'you have real beauty as long as you buy these products'.