Not sure if you saw it, but a while back I wrote a related article - Collaboration rewards: An underutilized feature of the Steem blockchain. I think that Steem is just about the only blockchain existence that already has the infrastructure underpinnings in place to enable the sort of thing that you're describing without a need for complex (and bug-prone) smart contract development. And that will be even more true when they role out Smart Media Tokens (SMT)s (possibly around the beginning of February).

There's still a long way to go for someone to build on Steem's infrastructure and create a compelling incentive and governance interface, but with votes, delegations, communities, rewards for authors, curators, and beneficiaries plus SMTs coming soon, I think the necessary building-blocks have been established here - and probably nowhere else.