Now it's all based on popularity of the villages, etc.
I guess it can make sense through the thought of our lives as being "The nation with the best economy is the more stable/powerful."
Though, remember, the other villages will be outnumbered through people because they lack aspects other villages (which are more promising due to location, etc.) do. And what if the village that's more prosperous gets more people because the stats are higher? Now you're looking at an inflation of people focusing on just one village.
Like I said, though, it's still a viable idea -- unneeded because it disrupts balance, but viable -- and something that makes sense. Though we still need guidelines. Spit-balling an idea as general as this is not a good start, me thinks.