My theory on that is that the people commit suicide because they feel they are unfit to live in society because their flaws have caused them to do something frowned upon. It seems like this society is just trying to make people as perfect as they possibly can, which has good intentions considering if everyone became selfless the world would progress so much faster. The big draw back is that when people make a significant mistake they feel like it is unredeemable. That is the only major flaw in Japanese society that I at least see.Japan has the highest suicide rate of all developed countries.
Their society has a harsh, unseen downside, many suffer because of the same honour, respect and manners that outwardly we admire.
But on the inside, they are just as terrible as any of us, they just don't show it in public.