If we invite a "pay for human engagement" model to the market, there will be security. Companies will not have to pay for hopes anymore. They will they for what they are trying to achieve: human engagement with their product.
How is 'person only looking at ad because they're getting paid to do that' a better model? Advertisers presumably want ads to go to people who might be interested in what is being advertised. But if other people are willing to take the bullet, and it means less crap for me to have to look at, sure why not.