In any case, when you ruin people's lives, any prison term is insignificant.
Belfort got 2 years, another exec at his company got 3 years. That doesn't seem significant. On the other hand, they got a deal because they cooperated, leading to 24 people at another fraud company being charged, one of whom got 22 years.
(The fellow who got 22 years is now out. He's on Twitter at @TheReal_Wolf_, and is involved in NFTs. Hmm.)
I don't think SBF would qualify for Shkreli's treatment, because people were significantly harmed. Would he get Belfort's treatment? Maybe, if he has the goods to bring down a bunch of other people.
SBF operated in MANY jurisdictions worldwide, and had a (now embarrassing) association with government officials. It's likely more governments will go after him than the other two. It's possible his situation results in more prison time than even Do Kwon, founder of Luna/Terra.