Is it in the best interests of all the people to have proportionate power? I believe so.
The EC is an abstraction, which philosophically and practically takes choice away from individuals. Population centers having more power than rural areas (even when they are the geographical majority, otherwise) is a proxy for land-owners having more power. While, ironically, land-owners (like farmers) often tend to be poorer than city-dwellers in absolute terms, I don't believe they should have some sort of relative power difference.
So the "land-owners," or at least, the owners of the companies that own the land, also live in the cities, and are themselves among the vastly wealthy.
Is it in the best interests of all the people to have proportionate power? I believe so.
I don't believe they (rural vs metropolitan citizens) should have some sort of relative power difference, despite their relative wealth and land-ownership differences. That's not important to me, philosophically.
Best I can do to clarify.
I live and work in rural NY State. For every farmer out here, there are dozens of teachers, janitors, computer programmers, hairstylists, restaurant owners & workers, and every other type of profession you have in hamlets, small towns, and non-mega-cities.
And yeah, there are a lot of people here who don't want property taxes to go up. They don't want any taxes to go up, because they're rural Republicans who have bought into the line that taxes are bad hook, line, and sinker. But as rural Republicans, they mostly don't even make much noise about wanting taxes to go down. The signs you see along the side of the road are clamoring to repeal gun control laws that prevent violent criminals and the mentally ill from purchasing guns.
Just because New York City has enough population to drown the rest of the state in doesn't mean that we should give the rest of the state disproportionate power.