Advertising is not meant to be educational, it's meant to make you aware the product exists. Of course you're don't have to trust what the company is saying, but now you know their product exists and what it does. If it was something you were looking for, you can now research it and ask for opinion.
Advertising is manipulative by it's very nature. Being made aware that it exists is manipulative in a somewhat forgivable way, but often the words and message are intended to motivate people with various forms of emotional manipulation.
Advertising is pretty gross.
And maybe that wasn't always the case, and maybe it's also using advertising in place of another word, but that's where it's ended up in my understanding of the world.
It's become lifestyle sales, of you buy this, you'll be this. They use that technique just about everywhere now. Used to be just cars and fashion. Like someone else said, emotional manipulation, narcissistic [my add].
Most people don't think with logic, but with emotions, so they're easy targets. Which makes me sad, because frankly no one deserves to get scammed and lied to.
I'm the type of person to appreciate direct and frank discussion. Many don't like this, especially people having power ambitions.