Advertisers know EVERYTHING about what makes every section of society tick.
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
LOL.
No, they really don't.
I knew several marketing executives, and had professors who were considered in the "who's who" in advertising.
The Dilbert comics and cartoons are a more accurate description of how people in advertising are, then anything that most people believe.
I was classmates (during my MBA) with a guy who was a marketing exec at a tobacco company, he was a smart kid, and a nice guy, but like most guys in advertising, way out of touch.
Advertising guys are no where near how they are portrayed, its just a portrayal that they love having.
Strange (or not so), most of them blame the free market for so many of their ideas falling, and come across as really anti-consumer.