I suspect success of advertising is less about people falling for deception and more about information availability. If you know nothing about two brands except you've heard the name of one 50 times in ads, you'll probably try it first.

I think propaganda is a better example, although again I think often people aren't deceived, they simply agree with the message or don’t care about the underlying truthfulness of the message and just use it as a way to align with their tribe, etc.