It's still very small if it's one pageview in your entire month, and it's that fraction of a couple of dollars. I'd be surprised if this gets anyone significantly higher revenue than ads; that doesn't seem to be the goal.

I suppose that if you're running an appropriately-designed ad blocker (i.e., one that prevents Google's third-party ad cookies from reaching the site), then Google won't be able to route your contribution to the site, anyway.