I agree with FFF. Prosecution will add nothing to safety, and merely satisfies the current thirst for retribution. If concern for your own hide doesn't make you a careful pilot, then the fear of prosecution is unlikely to do the trick.
Exactly the same applies to the foolish decision to prosecute managers for the Hatfield train crash. All that this will do is to stop the railways employing good bold managers, because they will not want to put their freedom at risk, and to make the system even more cringingly risk averse than it is now.
The partial shutdown of the railways after Hatfield almost certainly caused far more deaths than the original accident, by driving traffic onto the dangerous road system.