It is not surprising, then, that those nations whose power-blocs have promoted scientific and rationalistic ways of knowing have come to dominate and exploit the world, just as, within those nations, those same power-blocs have used those same ways of knowing to dominate and exploit other social formations within their own nation.
Knowledge is power and when you have knowledge you have the power to control who also has that knowledge. Therefore those countries who have the most knowledge can maintain the most power through their share or withholding of information.