Look at it from the candidate's perspective: the more voters they represent, the less any individual voter's opinion matters to them. Very similar to the utilit

Look at it from the candidate's perspective: the more voters they represent, the less any individual voter's opinion matters to them. Very similar to the utility of money, the more you have, the less a dollar is worth to you. And the less the individual voter matters, the more monied special interests matter. Money in politics is always a problem, but it's multiplied by the devaluation of the individual voter.