I for one, totally disagree with you on where the leverage lies. The community literally has the leverage here, as far as support of the Steem chain goes.
The apparent reason he purchased Steemit was to bring that community to Tron. If he forks and creates another chain without the Steem community supporting it, then there was never a reason to buy Steemit anyways: he could have just forked the chain and have it supported by Tron people.