'[A]ll Men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the Pursuit of Happiness -- That to secure these Rights, Governments are instituted among Men, deriving their just Powers from the Consent of the Governed.'

In other words, the government and its laws are created for the purpose of protecting the rights of the people.

Some laws, such as tax laws, may seem like they help the government more. But the purpose of collecting money from the people is to provide services for the people's benefit. Laws that restrict your behavior (such as the law against robbery) are intended to protect other people's right to keep their own property.

Your question raises a very interesting and important issue of political philosophy and if you want to consider it more, you should try to take a philosophy or political science class in high school or college.