There's no reason that amount of total area won should mean anything at all. Moreover, there's no reason you can reasonably object to cities dominating simply because they happen to be dense areas. Disagreeing with a group doesn't mean you get to use essentially arbitrary criteria to decide you'd like to ignore their wishes.
Social and political interests tend to have a heavy coincidence with geography. If you are on the coasts you care way more about the fishing industry than people in the heartland. If you are in a desert you care more about water conservation. If you are near oil and natural gas your livelihood or the livelihood of your neighbors probably depends on the energy industry. By virtue of being in a population dense area, you automatically have a powerful voting block on various area specific issues. What's more, the people in other areas are not your neighbors, you have much less incentive to protect their interests, and are much less likely to hear their anger and complaints when you don't. By and large people from Wisconsin are not going to be able to come and protest march down the streets of LA if California -- 8 x the population of Wisconsin -- decides corn should be taxed to subsidize making action movies.
The electoral college helps protect various minority populations from being exploited by a tyrannous majority. And that is the main point of our republic, why it is based on constitutional rights, competing branches of government (one of which is not voted on), an electoral college, etc., and super majorities are required to enact any substantial changes. Our government is not a mechanism for enacting the will of the 51% (or even the 60%) on every issue, it is built as a balance of interests which makes the government accountable to the people while also making it fairly difficult for any one group of people to use the government as a cudgel against another group.