As far as the "best and brightest", it sounds like you're spewing elitism. What should dictate best or brightest? IQ? That's not democracy. Democracy is a representative sampling of everyone's opinion and while not everyone has a high IQ they still deserve to get represented. What you speak of is the 21st century Electoral College.
Beneath your argument, I see your point that we all have a few core values that we want served by the government. Agreed. We might be better served by these zones based on voter attributes. I think if more power is handed to the states, our current government can achieve what you're looking for (cutting out middle man, drive down costs, and increase satisfaction). K well back to dynamics now...