Capitalism (at least our form of it) requires consumerism. Consumerism requires advertising. You may think it's just an annoyance, but it's the foundation of our economy. A dissatisfied consumer wants more; a satisfied consumer doesn't.
Making as much money as possible off consumers is considered the highest business goal. Of course that leads to developing expertise in manipulating them.
We're living in the "downside," if you want to call it that. I was just trying to point out that advertising is pervasive for a very good reason, because our society has created strong incentives and few barriers for it. And it's required to support our economy, otherwise all that stuff wouldn't get consumed.
Making as much money as possible off consumers is considered the highest business goal. Of course that leads to developing expertise in manipulating them.