As a European (used to free healthcare, statutory maternity leave, and 25 days paid leave per year) it shocked me on first visiting America how third-world it actually feels regarding what people consider a "normal" work/life balance. People work incredibly hard, long hours and often with very little to show for it. It's surreal.
Atleast they get paid relatively more than in the EU. In Japan you're expected to work mad hours (read 11-12 hrs) for what is barely above minimum wage in the US! Add to that Tokyo is hecka expensive. I was quoted a salary of $ 30k for a deep learning position. Now that is third world.
On the limited upside, the wages are not all there is to working for a Japanese megacorp. In addition to the thick wad of non-taxable allowances, there are also non-monetary benefits. As patio11 notes [1], “Most people want to become wealthy so they can consume social status. Japanese employers believe this is inefficient, and simply award social status directly.”
[1] http://www.kalzumeus.com/2014/11/07/doing-business-in-japan/