You may want to be a voice to a society you are living in. So the best way to be a voice of mass is running for the election to be a representative of the society. But a voice of a single representative might be effortless so each individuals should combine make huge efforts. That combination is called Party. In dictatorial countries, you have both monetary and security benefit if you are with leading political party. But if the opposing one, you may face so many negative outcome and risk your & your family's life. The goal of political parties are different from one to another. But in average, confirming the accountability and responsibility by sustaining freedom, liberation, right and needs of the citizens.