Google is already doing this for a while now. Instead of Ads they get feedback about products and services.
Why ask about Ads when you really want to know consumer's thoughts on products??
They decided to make this distinct (at-least from user's perspective) from AdWords/AdSense, which is an awesome idea. And you get play store credits for answers!
https://play.google.com/store/apps/details?id=com.google.and...
Free Advise: Coding doesn't solve any problem by itself. Business models do.