I'm not going to say it's impossible, maybe he could be managing this big crypto empire from jail, but it would certainly be harder to do all that from prison.
I think there is probably a significant number of people who wouldn't normally be criminals, and thus aren't technically being "deterred", but would end up being just that little bit less scrupulous if they regularly see prominent examples of criminal behavior going unpunished.
For the “isolation from society” i think it’s the least compelling part of lengthy incarceration. You can probably achieve the same effect with just house arrest and other such restrictions
He probably is a higher risk of racking up 25 more years every 18 months than a shank specialist.
People like Sam Bankman Fried are much harder for me to feel bad over. He was never struggling to pay rent or having to worry about not being able to afford groceries next month. He was already well off, and just decided to gamble with other (poorer) people's money because he wanted more money.
This means, to me, that this was a more cold and calculated thing, not something out of desperation or frustration, just greed. Robbing someone that you think is rich is bad. Robbing someone you think is poor is something supervillains do. If he's already been able to square that circle once, I see no reason that he wouldn't be able to do it again.
Forgive me for not crying over how he might actually have to pay consequences for his actions.
Really, my preferred punishment for him would be a sentence of 25 years working in a non-managerial, non-ownership hourly position in the quick-service restaurant or janitorial fields, earning not more than the Federal minimum.
i think you missed the whole "justice" point there.
spending 25 year behind bars with 21+ yrs mandatory seems like enough to deter most people.
I'm not sure that's a sufficiently bad outcome to deter the next crypto narcissist.