Wages for doctors and bankers are even lower in Japan compared to the USA. Wages for food workers and janitors are much higher.
Nevertheless, the top majors at the U of Tokyo are all various forms of Engineering while the top majors at Harvard and its ilk are Economics, Political Science, and Psychology. That tells you a lot about what the smartest young people think is valued in their society.
I was just responding to his sentence that said wages for engineers are as high as the United States and Europe. This is false, at least for software engineers. When I worked in Tokyo I was shocked at how little my co-workers were paid. I am not qualified to comment on the rest of his post.