The answer to this question is: <span>Even the king must respect certain rights of the people. Before the creation of Magna Charta, the power of a king in England is unlimited. During this period, the King was able to punish whoever he feel pleased even without proof of wrongdoings. The creation of Magna Charta make the King exposed to the risk of law which makes him more accountable when he's doing something that violates human rights</span>
During campaigns, politicians create a lot of promises that may be impossible to do. A lot of people also hope that elected officials will serve the people without political division or greed. There was also lost of trust in the government.