I don't know how to feel about it. Some Japanese aquaintances have liked to point out that that the difference in salary between top execs and low-level employees is much smaller in Japan. I usually counter that IMO personal experience USA companies pay salaries 2x to 3x more than Japan so I don't really care the boss makes 1000x more given they're paying me more as well.

I have no idea if that translates over the entire workforce though.

As a software engineer, starting software engineers in Japan start at ~$25k a year. Same ballpark as fast food jobs.