Everybody on Steemit has to take any human personality into consideration - including the 5-10% psychopaths (depending which statistic you prefer).
It would be naive to assume that any alphabet soup group or hacker group of any large GDP country would not at one point try to game the system in their favor. Who knows who really controls the biggest stakes right now behind the anonymous bitcoin wall. We don't even know who Satoshi is - Dan might have a better idea about Satoshi than anyone in here as I am pretty sure NONE of us has interacted as much with Satoshi or the Satoshi group as he did.
From what I have seen so far or researched about Dan he is more altruistic than many on here that complain - mostly for egotistical reasons - being it from a narcisstic angle or just pure profit motive.
It does not matter - the platform will survive and thrive from very sophisticated foresight - coupled with integrating the best feedback from the free market. I feel at this point that the core group around Dan does an excellent job at that.
Who can know that much less altruistic forces are already prepping a not so benign Steemit alternative? Who will stick here if Zucky uses some of his billions to build a Steemit clone with more fiat incentives? Hard questions to answer as nothing conceivable is impossible in principle ;-)