My wage in terms of dollars have remained the same for the last 5 years despite earning double. It's not ruining my life only because it takes longer for prices to increase here -- but they are definitely increasing.

Japanese people also don't like talking about wages and not everyone compares what they are making to the dollar. I have heard plenty of colleagues, friends, and family complain. It's more about how the number of diapers in a bag has decreased steadily from 72 to 56 than boy my life is getting ruined by weak yen.

The more prevalent complaints are from fellow mortgage borrowers. Variable rates in Japan have been steady for nearly 30 years, meaning a substantial number of borrowers are watching the central bank's moves like a hawk and are terrified of even any talks of rate increases.

TLDR: We are just not loud complainers (and frankly, if any Japanese person you know is hopefully very lucky, they might be earning just enough to not notice it all)