All docking and cropping done for breed standards in the U.S. is done to achieve "beauty" in the eyes of humans. What God gave them is not quite good enough, and humans think it can be improved
.
For most of the rest of the world, it's considered animal cruelty to "mutilate" an animal. Dogs from the U.S. are not allowed to be shown in European shows if they've been "cosmetically altered".
My pups conformed to U.S. standards when I got them; if they didn't have their tails docked, it wouldn't have made a difference to me because I had no intention of ever showing them.
I must say, however, that I appreciate that they don't have dewclaws anymore: those have always annoyed me.