I don't think there's anything particular about SBF that makes him more likely to re-offend (And even if he wanted to, one would hope he'd have a hard time convincing folks to hand over another 8 billion for him to embezzle a second time).
Which isn't to say that I don't think he should go to jail (he definitely should!), just that I don't think he's any more jail worthy then people who engage in other forms of non-violent theft and/or fraud.