A: To serve as a bastion of bureaucratic efficiency in a world gone mad.
A: Because we value visibility and alertness. Also, it's a nice contrast to the soul-crushing drudgery of real life.
A: That's what the Rulebook is for.
A: Cookies are for suckers. Try asking HR for a participation trophy instead.
A: Only if you're prepared to have your every waking moment scrutinized and critiqued.