Two points: 1. You're wrong about it being just culture and governance -- history and geography play a big role in why we see things developed as they are. 2.

Two points: 1. You're wrong about it being just culture and governance -- history and geography play a big role in why we see things developed as they are. 2. Even if it were, your comment is useless. You claim it's culture and governance, not just governance. With part of it being cultural homogeneity (as the GP said...), which is itself a quirk of history and geography, it doesn't follow that changing governance to match would lead to the same outcomes, since cultures wouldn't match (and likely be less homogeneous).