They could retain their micro economic system, sure, but could they retain their superior social harmony? Of course, it's possible, but totalitarianism (censor

They could retain their micro economic system, sure, but could they retain their superior social harmony? Of course, it's possible, but totalitarianism (censorship, cultural cleansing, etc) is far from irrelevant. And what about their ability to rapidly implement strategic policy initiatives, including displacing massive numbers of people against their will? Unfortunate for the individuals, but incredibly beneficial for the group, compounding over time.