Why would you see such change in behaviour as something bad? Personally, I'm thankful for targeted ads from companies that I love about new products that I don't follow myself. What's your experience with them that is so negative?
It's different when you want to research something, like buying a mobile phone, when you go to their channels and pull in reviews, advertisements, etc.
I think advertisement should be taught at school, so everybody can recognize when they are being pushed/nudged into feeling something. Because I think it does a whole lot of damage to society (obesity, stress, debt, etc).
I know it sounds depressing like that, but have a nice day :)