Moral communities are fragile things, hard to build and easy to destroy. When we think about very large communities such as nations, the challenge is extraordinary and the threat of moral entropy is intense. There is not a big margin for error; many nations are failures as moral communities, particularly corrupt nations where dictators and elites run the country for their own benefit. If you don’t value moral capital, then you won’t foster values, virtues, norms, practices, identities, institutions, and technologies that increase it.