Good government need not necessarily be 100% representative, just as 100% representative government need not be good.
But being 100% representative doesn't make government any worse either. Isn't this a debate on the fairness of electoral systems? Wouldn't you prefer to treat every citizen equally?
They are. They each equally influence which candidate their state's electors go to.
Now, I think that every citizen being treated equally is all fine and good, but there must be a check on rampant tyranny of the majority. Now, you could say that we have tyranny of the minority in the Senate and electoral college. However, remember that the US House, Governors, State legislatures, County governments, city governments, townships in the NE, are all "fair". These institutions affect my life far more than the two "unfair" ones. Even the US House, I would argue, is more powerful because legislation almost always starts there, thus shaping the debate (which carries over to the Senate).
I don't care that Wyoming has proportionately more power than Colorado in the Senate and electoral college because, in the end, they
still are far less significant to the federal government than Colorado. Places like Chicago get far more attention than Colorado despite the Senate and electoral college.