This is in part the reasoning used by Judge Kaplan:
Kaplan himself said on Thursday that he decided on his sentence in part to make sure that Bankman-Fried cannot harm other people going forward. “There is a risk that this man will be in a position to do something very bad in the future,” he said. “In part, my sentence will be for the purpose of disabling him, to the extent that can appropriately be done, for a significant period of time.”
This is in part the reasoning used by Judge Kaplan:
from https://time.com/6961068/sam-bankman-fried-prison-sentence/