The only reasonable solution to this could be for Twitch to implement a system/program where the streamer can, by his own will (aka: optional), send to the devs that join this program a small percentage of the income.
Big streamers could send 1-2% of what they make on twitch while being able to advertise this little fact on their stream page (kinda like how it shows when drops are enabled).
Big streamers could send 1-2% of what they make on twitch while being able to advertise this little fact on their stream page (kinda like how it shows when drops are enabled).