Broadly speaking, we human beings turn to two solutions to try to make things better. Whether it is an organization, a family, a church, or a nation, there is always room for improvement, always some yearning for things to be even better than they are. And we generally seek those improvements by trying to find either the right system or the right person.
Revolutions are usually about trying to find the right system. Elections are about trying to find the right person. And human beings seem to have an endless reservoir of optimism when it comes to new systems and new leaders.