Well I would argue ads are micropayments, roughly an ad view is like $0.001. A model based around few users making macropayments, influencing the content that is produced, doesnt speak for everybody.
Speaking for everybody oddly enough is almost never the goal of any enterprise. Content creators generally either produce their content and care about finances to support it full time (they would try to do so even if it cost them money) or just do so as a means to the end. It is all a trade problem in the end it seems to get people what they want.