It really depends on whether you see ads as "bringing to the user's attention that there is a product out there that might improve their lives" or if you see them as "attempts to manipulate people into spending money on things they don't need or want".

I'm definitely in the latter group, but I can see how some market purists might believe in the first version.

Could you please elaborate?

emotional brainwashing(entertaintment, fear etc) people to buy stuff that they don't need. taking advantage of people's weakness. it's not like "this is our product, this is what it does, and this is the price of it" instead "your neighbour has this cool stuff but you don't means you are lesser person if you don't buy also", "if you don't buy this stuff, you won't get a girlfriend and die alone", "if you don't buy this stuff, you will miss out amazing opportunity of becoming rich and stuck as poor"