In order for So'm or Ruble not being worthless in case free capital flows is allowed, these governments have to establish investor's trust. In order to establis

In order for So'm or Ruble not being worthless in case free capital flows is allowed, these governments have to establish investor's trust. In order to establish investor's trust, clan system have to be dismantled, rule of law for all established, property rights strengthened. But elites in these countries aren't willing to gave up their lucrative rent seeking. Therefore, in order to keep their currency not totally worthless, they established strict currency control which patriots buy it without looking deeper.