You can imagine a company that has come up with a product that helps people live more sustainably, and they want to figure out how to tell people about it. You didn't seek them out though; are they your enemy?
Yes. So they are trying to tell me how to be more sustainable, and make a profit on the side? Which objective is more important to them?
Edit: I believe that analyzing the biases and incentives underlying the choices and abstractions presented to us is an important part of what it means to be an intelligent human being. Ads are not reliable sources of information, as the company is incentivized not to inform you, but to sell to you. There are many better sources of good ideas than ads.
