It's not about "two wrongs don't make a right". It's about equal treatment. If the precedent is set that the law is applied equally, there would be less incent

It's not about "two wrongs don't make a right". It's about equal treatment. If the precedent is set that the law is applied equally, there would be less incentive to pass stupid laws. That is one of the problems today where there is so much special interest at play that there is effectively now a system where "this applies to you but not me" is prevalent.