You clearly do not understand anything about Dan's decisions in regards to Bitshares or Steem. You should watch more of his interviews to understand why he is not involved in those projects. To recap, and don't take my word for it as I may not be accurate to the T but:
Bitshares was abandoned because 1) it was too complicated to market to the general public (which is what Dan aims to do to make the biggest impact) and 2) the project is completely decentralized and funding comes from proposals put forward and agreed upon by a group of elected individuals - who at the time did not want to fund any further improvements for Bitshares, leaving Dan to work without any funding - and who in their right mind will work for free, tell me?
Steem was abandoned because (from my understanding) the blockchain has reached maturity and there was not a whole lot left to do on it other than pass it on to the community to take governance of itself. You have to put yourself in a developer's shoes whose goal is not to govern but to build and delegate to others to govern. It's a free world to do as you please so why would anyone want to stay around a perfectly working product if they could put their energy elsewhere - beyond a simple social posting site like Steem. Dan has the talent and the vision to move beyond his initial projects, he has learned along the way and he put those lessons into practice with EOS. Funding was secured through VCs and the ICO aims to distribute tokens as widely as possible while funding development on the blockchain - this makes perfect sense. Dan is also probably holding a good portion of the tokens to keep himself occupied on improving a vastly more generic blockchain that can be applied to anything, not just a platfrom like Steem. He is already incentivized to make EOS the biggest blockchain to come and has no reason to leave. General purpose, stake in the business, and a broad vision for things to come would be enough for me to keep working on something. It's the whole reason he has stated over and over in regards to him not launching the main chain - he is the architect and community as a whole has to decide the future. He can focus on the tech - to provide a foundation for EOS to go far and wide while the community decides with their votes where EOS will go.
This is my understanding explained simply as possible without carrying on in greater detail. If you really want to see the real Dan, watch his interviews - there are many moments where you can see his true personality.
