I have something for you: Every time there is a robbery, let's calculate where the robbers could be (100mph * time from robbery) and then let's detonate a bomb that wipes this exact radius at the place of the robbery.
That way, robbers will think twice about doing robbery again. Guaranteed 100% efficiency.
See? The robbers are wrong, but the stupid cop detonating the bomb will be even more wrong because he'll kill thousands of innocent people in order to get the robbers. In other words: the reaction will be far worse than the offense.
That's what is happening here. Nobody claims the pirates are in the right. If you want to have this debate though, I'm all ears, I'll let you shoot first ;-)