Jail is a great deterrent against criminal conduct. But natural persons are already risking jail when they engage in criminal conduct regardless of whether they're doing so within the scope of an organization or doing so on their own initiative.

Jail isn't on the table for financial liability or civil torts in the first place, and since pretty much all the forms of liability involving commercial conduct we're discussing here are financial liability or civil torts, it's not really relevant to the discussion.