Most places/countries/companies that value hard work tend to produce a lot, but I also wonder what goes on when it tilts too far and hard work becomes what you are measuring for. In the US for example there's still the vague idea that working hard is a virtue of sorts, but there's also an equivalent desire to produce something, be efficient, etc.

I haven't directly experienced Japanese work culture (just language and traveling) but it seems like they value hard work above all else, which makes innovation almost a threat. You might take away someone's opportunity to show "hard work" if you removed a difficult task.