I always think that whenever a new rule or procedure gets created there should be sufficient reasoning as to why it had been created, what conditions prompted it, and what it's designed to solve.

With that information people can see why something needs to be done a certain way, and additionally they will know when rules and procedures should be eliminated. In my mind this would allow people to deduce when exceptions to the rules are applicable, and hence be more effective.

Unfortunately I have not actually seen this happen in real life.