Steemit is giving back indirectly by raising awareness of the Bitshares platform and making a number of the Bitshares core development team very wealthy. It will be interesting to see what sort direct benefits Steemit will provide to Bitshares, and whether the two platforms will formally collaborate. I could see the Bitshares DEX integrating nicely into the Steemit DEX and bringing bitAssets all under one platform. It would give all Steemit members access to a plethora of investment options - bitGOLD, bitSILVER, bitCNY etc. Really, the two platforms could merge and create this uber crypto social economy that would be unlike anything the world has seen...