Seen a lot of ‘commentary’ about Gotham – TV series – and questions about why Batman would be needed when Jim Gordon is such an effective force of law and order.
You get burgeoning villains.
The police (Jim Gordon) lock them up.
The villains recruit and get better/worse whilst locked up.
Because the ‘villains’ get locked up the crime rates fall.
The politicians say – “Hey! Crime is down, we don’t need to spend all this money on the police!”
The police force gets halved.
The now (worse and supported) villains escape/get released.
Who’s going to stop them?