Earlier today, you were asking about gender identity. Kilbourne's work tells us something about the impact of advertising on our gender identity. She shows us how advertising gives women a sense of inferiority about their gender and their bodies and how it teaches our whole society to be sexualized and to objectify women.
From Kilbourne's video, I get the idea that advertising makes men and women both objectify women. It influences women to connect their self-worth to what their bodies look like. It encourages men to think of women as objects who are fair game for various kinds of exploitation. This makes our society as a whole more misogynistic. It also makes us more obsessed with sexuality, leading to things like sexual abuse.
In these ways, advertising seems to have a very negative impact on our society and on people of both sexes.