Why Do People Go Against The Unjust

I’m asking this question because people always been taught to obey the laws in our education. If you broke the law, you will be charged and be punished. People ignored the fact that some laws are unjust. If you followed the unjust laws, then your behavior is immoral. If you disobeyed the unjust laws, then your action might be moral. Why people be charged because they go against the unjust law? It is called a “law” means it is a moral standard for people to obey and follow. Originally, laws were created to make our society better and more stable. If the law is unjust, why people should obey it? To obey an unjust law will contribute to the chaos, turbulences, divisions or suspicions. Without doubt, this will go against with the original purpose