I don't think he can dismantle Steem, there could always be a hardfork (if he controls enough of it) or he can take some of the technology. More than likely as with most mergers, the weaker rises and the stronger token sinks. This is a huge nod towards Steem. We all know there are thousands of other blockchains he could have bought into. JUSTIN BOUGHT INTO STEEMIT and STEEM.