I suppose this is actually representing the most famous people in the -western world's lens- rather than the most famous people to each country respectively. For example, Haruki Murakami is a Japanese author, very famous in the west because their books have been translated into English. But would they be the most famous person from Kyoto to people in Japan?

That's something that's always fascinated me about the internet, it's essentially delineated by language and not country. If you google things in Spanish, you get the spanish web. If you google things in Japanese, you get the Japanese web. For a subtle example of this, there's very little crossover between Japanese memes and English memes, it's a whole different web. Japanese web design is also famously different to western web design, it's formed it's own set of UX expectations and principles.