Stereotyping in advertising

When you look at advertising and really think about it, it's all stereotyping; Race, gender, age, it all defines the product that is being presented. The question that arises is, "Is advertising creating stereotypes or mirroring them?" No one singly created a stereotype, it's just a tool we all use to depict males from females, black from white (etc.) and young from old.  I believe that advertisements must stereotype their products because the society and the consumers that are looking/watching/reading these advertisements need to  know what the product is and who the target audience is. Here's an advertisement that depicts a wife from back in the old days that would be stereotyped as a stay at home wife that cleans and cooks for the working husband that comes home to a meal and a beer.