I live in a part of world that has little limits on how you can advertise, sell your services and that has large structures for commissions regarding, well, pretty much anything. Want to take a ride somewhere? The driver will try to sell you anything. Instead of taking you where you want to go, or what is the best place for what you want to do, he will take you where he will get commissions from anything you spend. Be that restaurant or any other venue of entertainment. You can't ever be without thinking if you get good service, or if you are just used for making money. It starts to get into your head.
For me, Google is largely the same. That is how they make money. I much more happily pay for a piece of software or service when I know exactly what I get, and that I get it good price without foul play. Google and other marketers twist this. Nobody has time to completely research or get to know what they buy or what's available. Those marketers rely on that weakness, and in turn you are getting screwed. Do you really want to be thinking all the time if someone is screwing you over? It sucks.