The difference (that mgleason_3 was saying) is that Americans cannot see that other's have different viewpoints. Other countries are able to see that others have different viewpoints and can justify their own decisions in comparison with others.
It's why, for example, they are often puzzled when abroad and note that "some people don't like us Americans" and cannot find out why.
I have noticed this particular way of looking at the world with many Americans when working in global collaborative tech projects - it's a kind of imperialism - a built in sense that their way of looking at the world is the only way. It seems to be a common thing, and not everywhere. It also has the characteristic that those with that mindset are unaware about it.
There are many exceptions of course, and the most successful people are able to work with people from other cultures. But I believe this is what the article and mgleason_3 is trying to say.
If you'd like another metaphor to explain the theory: Privilege. Americans have a privilege as the "top" culture which makes them blind to others below them.