Advertising literally means to get people to do what they do not want to do, the adverse. If they were just promoting one option over another that would be called divertising, to divert you to the preferred option over the other.
Fact is that most of what advertisers do is the promotion of what they're paid to promote. But the industry still chooses to use the term 'advertising'. It's like running for political office under the "Totalitarian Fascist Party" pitching to represent the constituents' best interests. Okay, bad example...
Let's try the obligatory car example. It's like claiming that the car you're selling is the best way of getting around despite all other sustainable means that undermine the infrastructure that make cars necessary, which other departments in your company are battling unmercifully. Err... that doesn't work either...
Umm, maybe it's like the farmers in India who were persuaded to use genetically modified seeds... Err, sorry, they're not around anymore to comment.
OK I got it! It's like knowing what you want to do, but getting paid to do something else, and then it bites you in the ass. But that NEVER happens, right?