I told you those two stories so you could see where I think the line gets crossed by marketers, but also so I could tell you this story.
In 1999 Douglas Rushkoff published a book called Coercion, which essentially tracks the evolution of marketing into a branch of psychology. He illustrates exactly how marketers try to influence and persuade you in various media, and outlines the history of marketing as a measured science.
It all started with a copywriter named Claude Hopkins who first applied empirical testing to advertising elements back in the 1920s, and of course things have only become more sophisticated. Massive database profiles, television “programming,” contextual web ads, sophisticated algorithms that make recommendations based on past behaviors—these are some of the ways marketers are trying to deliver the right message to the right person at the right time.