You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Civil_disobedience

Context:
Some civil disobedients feel it is incumbent upon them to accept punishment because of their belief in the validity of the social contract, which is held to bind all to obey the laws that a government meeting certain standards of legitimacy has established, or else suffer the penalties set out in the law. Other civil disobedients who favor the existence of government still don't believe in the legitimacy of their particular government, or don't believe in the legitimacy of a particular law it has enacted. And still other civil disobedients, being anarchists, don't believe in the legitimacy of any government, and therefore see no need to accept punishment for a violation of criminal law that does not infringe the rights of others.

Question:
Why is the need for acceptance of punishment needed?

validity of the social contract