Japan has the highest income tax bracket, horrible working culture (confucian hierarchy, ijime, overtime expected to be norm), no mental health support and to top it off a non-competitive corporate taxation.

All of my native Japanese engineers who can speak modicum of English is leaving it to work abroad. I know many startups and companies have pulled out due to the inflexibility of the government (you need to be profitable with your highly failure prone venture by year 2 or you are booted from the country).

I don't know why any sane person would want to work and pay taxes there. Hell, even Japanese don't want it. Japan had 30+ years to recover from its economic slump and I don't see it improving anytime soon.

On the other hand, great place to visit, and on a different type of civilized citizens that you is tough to find in most Western countries these days.