As a blue-collar worker, you could complain to the people around you... but your boss probably couldn't. As you move into management or into the white-collar world (either one), you can still complain, but your complaining will be taken more seriously, so you can't just blow of steam any longer. You have to complain, quietly (and rarely), to the people who can actually change things, and preferably with both a reason for them to make the change, and a suggestion of how to do so. It's a cultural shift.