It is entirely possible that what you are suggesting is the beginning of an answer to the problem. But it is not immediately obvious to me that our current social structures will support an
economy based on people inventing good jokes. I think that will take some kind of radical change, and thinking about what shape that kind of radical change might take is exactly what I'm hoping to encourage people to start doing. So kudos to you for thinking along these lines, but I don't think that actually solving the problem will be quite as simple as writing a good one-liner.
Nothing would make me happier than to be proven wrong about this.