To give a disproportionate amount of voting power to rural areas.

People look at a map and go "Oh my god look how much square footage is red" and can't comprehend the population density of large cities, so feel they are under represented.

Same principle as two Senators per state, and Congressmen are supposed to balance that out by representing population, until the artificial cap on number of Congressman.

Between that, and the insane gerrymandering, Red rural votes are just weighed higher than Blue urban votes.