The difference between the two women is that the wife has not been airbrushed and worked on by retouchers. Most men do not take that into consideration. The same thing can happen with children. Sometimes children can be pretty cruel to their peers and not realize it. If you were a pudgy kid all your life and got teased in school, there is a high probability you will have a fat-complex when you are older.
Weight can be a very powerful weapon.
However, there are measures that can be taken to regulate what advertisers depict in the media. One organization called BAM, which stands for Boycott Anorexic Marketing, has taken a huge step in fighting unrealistic body images in ads. This mother is referring to a campaign done by sprite because the brand used waif-thin models in their ads. BAM became active in response to this campaign. Of course, a problem with this group is the size.