If the choice of route were just about economics one might think that straight roads from city to airport are especially prevalent in rich countries. But if politics trumps economics, then straight roads will more often be the province of petty dictatorships rather than representative—and rich—democracies. That the difference between driving distance and the distance as the crow flies is related to politics, and especially to how many essentials a leader needs, is rather interesting and perhaps surprising, but related they are.
