Yeah, but you already have a police/justice system, right? From the perspective of a politician, the decision (a) is more about "prioritize the police/justice system to do its work on these cases". The justice will have to drop something else they are doing to work on this, and that something else might be beneficial in preventing the future crime in the same way you're arguing. (If you mean make sure systemic changes are made to the prioritization, that's another variant of the (b) option.)
But to be honest, I am not sure retributive punishment really prevents crime all that well. U.S. has a lot of laws against fraud, and has a pretty good track record in investigating and punishing as far as different governments do, and fraudsters still appear. I think in most cases, people aren't rational about committing a crime, they often self-delude themselves somehow that whatever they are doing is morally acceptable. I think there was an interview with the FTX CEO, who answered the interviewer's question with incredulous "the way you describe what we do, it indeed looks like a fraud". So I think some people have the ability NOT to see their pyramid scheme as a pyramid scheme.
On the other hand, people who will rationally consider whether to do a crime or not, should not necessarily think that because someone got away with a crime, they will get away with it too. You might as well think that the police/justice will be better prepared to a similar crime now.
But to be honest, I am not sure retributive punishment really prevents crime all that well. U.S. has a lot of laws against fraud, and has a pretty good track record in investigating and punishing as far as different governments do, and fraudsters still appear. I think in most cases, people aren't rational about committing a crime, they often self-delude themselves somehow that whatever they are doing is morally acceptable. I think there was an interview with the FTX CEO, who answered the interviewer's question with incredulous "the way you describe what we do, it indeed looks like a fraud". So I think some people have the ability NOT to see their pyramid scheme as a pyramid scheme.
On the other hand, people who will rationally consider whether to do a crime or not, should not necessarily think that because someone got away with a crime, they will get away with it too. You might as well think that the police/justice will be better prepared to a similar crime now.