Consider the traffic cop that pulls someone over after just 30 seconds of clocking speeds. How many drivers does the officer prevent from speeding? Not many because he is busy writing a ticket (punitive).
Now consider the traffic cop that notes some drivers exceeding the speed limit by 8-12 miles per hour, but doesn't issue tickets. Most of these drivers slow down when they see the officer as their adrenaline increases and they realize the potential harm and consequence in speeding.
Sometimes you have to be a traffic cop, and every officer has to pull over the most obvious offenders, but you have a choice.
What kind of traffic cop are you?