SBF's greatest punishment will not be jail. It will be that he can't show his face in public for fear of running into someone who lost money.
Noone will want to do business with him anymore because of reputational risk.
Ftx most likely had deposits from some really cleaver hackers with real anger management issues. Any parcel he opens could be a bomb.
Prediction: The next mega entrepreneur in the crypto space will be extremely transparent.