And by reductio ad absurdum, some aboriginal Pictish ancestor of the Scots was the most important of them all. This approach, however, does not assist our understanding of history.
As an aside I remember when they were making lists of the 100 greatest people in history. I thought that no one would say "Sir Alexander Fleming" yet his discovery of penicillin lead indirectly to saving more lives than probably any thing in history.
Then why not, by your logic, cite Fleming's crucial parents?
In other words you don't have to go back very far before one of your ancestors can claim only 1/128th credit for you.
Same goes for countries. Scotland may not be able to claim full credit for Alexander Graham Bell but they can for Alexander Fleming.
As for whatever town that was for the first man on the Moon, I would bet if you went there and asked what that little town had ever contributed to world history, someone would say "Have you never heard the first man on the moon?.