Americans are “hardly the first people to believe themselves favored by Providence, but they are the only ones in modern history who are convinced that by bringing their political and economic system to others, they are doing God’s work.
This view is driven by a profound conviction that the American form of government, based on capitalism and individual political choice, is, as President Bush asserted, ‘right and true for every person in every society.’ It rests on the belief that all will embrace it once the United States removes artificial barriers imposed by regimes based on other principles. By implication, it denies that culture and tradition shape the human psyche, that national consciousness changes only slowly, and that even great powers cannot impose their beliefs on others by force.
Early leaders of the United States did not hold this view. George Washington wrote that for nations, as for people, self-interest is always ‘the governing principle’ and that no country, specifically including the United States, should be ‘trusted further than it is bound by interest’.”
From page 315 of Overthrow, by Stephen Kinzer