Because they have allowed tail functions like HR and Building Services to set company policy with no thought to the wider effect on the company. Aka I got my bonus and I don't care if I have F%$Ked up the company
Quite.
They get bonuses because they "saved" the companies millions by cramming more workers in a smaller space. Then they get another bonus to figure out how to cram more workers in, because for some weird reason productivity has gone downhill.