Room for one more on that Jacket?

I have been reading, and enjoying, the book The Tin Drumb by Günter Grass, translated by Ralph Manheim. This book won the Noble Prize in 1999, however my copy is from 1962. Originally I had a problem with the endorsements on the back of the book jacket. There are five endorsements, one from Germany, one from France, one from The United Kingdom, and two from the United States. How dare the Americans suggest that their opinions are more valuable?

Then I thought about it more. There are a lot of Americans (United States citizens –300 million). In fact there are more Americans than there are Germans (82 million), French (60 million), and United Kingdom Citizens (60 million), combined. So, I guess if you want to appeal to the majority, you appeal to the Americans.

I always thought that Americans were hubris, now I know they are just populous.