Law makers are there to evaluate current laws, modify and make new laws. If a law is no longer valid or relevant, they would need to break them and introduce a new one to replace. I am sure, if we look back, before it was illegal for a white person to associate with a coloured one, but we must be glad that many people broke those laws and became those who established the laws of equality against racism etc.
Law makers are definite law breakers. They take advantage of their positions to broker illegal deals with lobbyists. They take kick backs from multiple people. Law makers have often been caught driving under the influence of alcohol. They even believe that they are above the law. They believe that they can embezzle funds because they are untouchable.
Yes, some law makers are law breakers, but it's not because they make the laws. We are all law breakers. Who among us can say that we've never sped while driving? Have you ever not completely stopped at a stop sign? If so, you broke the law. So, it's true that some law makers break laws, but that can also be true of almost anyone.