The truth is that the United States, with rare exceptions, has demonstrated little talent for changing the way others live. We have enjoyed far greater success in making necessary adjustments to our own way of life, preserving and renewing what we value most.
Largely because we are blessed with so-called 'Intellectuals' and 'Journalists' who have an ability to withhold their criticism on any national endeavor only as long as their own party is in power, i.e. the one represented by an ass, or 3 years, whichever comes first. At the conclusion of any such brief period of forbearance, they bellow, whine, and piss their pants until they can create enough discontent to derail efforts to stay engaged overseas long enough to effect cultural change. Historically it appears to take something like 15-40 years to successfully foster cultural change, and that only after organized armed resistance is suppressed.