I was delighted to read this passage in Massimo Vignelli’s The Vignelli Canon (pdf link):
The international Standard paper sizes, called the A series, is based on a golden rectangle, the divine proportion. It is extremely handsome and practical as well. It is adopted by many countries around the world and is based on the German DIN metric Standards. The United States uses a basic letter size (8 1/2 x 11”) of ugly proportions, and results in complete chaos with an endless amount of paper sizes. It is a by-product of the culture of free enterprise, competition and waste. Just another example of the misinterpretations of freedom.