The problem for all of these categories is that lots of people want to do the job. There is basically an unlimited supply of people that like to write novels, make programming languages, play soccer, or make video games. That makes it a buyers market. "What? This iPhone game is $0.99? No way. I'll play one of the million free iPhone games instead."
For every singer, basketball player, or instagram personality that hits the big time, there are thousands that never made a dollar doing it.
For better or worse, authoring an open source library is one of those things that there is no shortage of people willing to do, so I am not optimistic about use of "business innovations" to solve this problem. If those innovations are in any way non-consumer friendly, consumers are just going to choose a different open source tool/project.