Yes, japan is a whole different mentality, with a completely different set of values and social norms ( mostly focused on "don't show disrespect to others", and "don't embarrass yourself"). Traveling from japan to the US/Hawaii was probably where i experienced the largest culture shock (and not in a flattering way for americans). It felt like going from civilization to barbaric lands.
On the other hand i can see why some japanese people can't handle that much pressure on their everyday behavior and prefer the western mentality at some point in their life.
> "I can't quit the job. If I say I'm going to quit, I'll be threatened that I will have to pay damages for quitting."
People don't always do what's in their best interest. People talk to the police without a lawyer all the time. People sign away their rights just because they don't want to push back on things. It takes guts to stand up for yourself.