@Scrwd
Companies beyond a certain size (and unfortunately too many management figures) don't really care for employees as individuals, but simply a [human] resource that can be converted into work hours.
"If he could finish one thing, give him another so more work is done for the same wage," is the logic. Eventually it, combined with Japanese work culture (though certainly not only in Japan), becomes a terrible feedback loop where there's an endless stream of work without respite demanded of, usually not just one, but all employees. And nothing really will be done about it unless something drastic changes their bottom line (or, like Nakano and Senko finally realized, to just quit before he died for no reason but someone else's uncaring profit/ease).
I hope Tanuki-chan will survive...