The election is like religion - there must be rituals and performances so it will seem real to people.
But it's not real. America is controlled by the big corporations, who back the professional politicians who will pass legislation in their favor, and who control what the media presents to us as "news". The price of gas is one example of how this works.
It's all about power and money and how to control 301,139,947 people, and it works like the casinos in Las Vegas - the odds are in favor of the house. The house being the government and the gamblers being the American people.
The end result is that Big Business prospers from a huge customer base and the American people have goods and services to purchase, at an ever-increasing cost.