Well, arresting the driver for vehicular manslaughter and sending him to prison for a long time can, quite helpfully, prevent that driver from killing anyone else as well as you. It also, very helpfully, sends the message to other drivers, and people who are seeking a license to drive, that the red lights aren't there for decoration - they're a f**king instruction to stop and obedience is required.
Where were you going with that one? Did you think that through?