What is so important about privacy? You're supposed to be working, aren't you? I can totally understand privacy when you're dealing with sensitive date that shouldn't be seen by other people.
It's not entirely logical - chances are no one's watching me - but it's brain overhead you don't need.
But you don't need an article to tell you this. It feels shitty to feel like you're under a microscope all the time. Basic privacy makes people more comfortable.
Human nature. It's not the "privacy" per-se, so much as the sense of security. Who wants to feel totally exposed at all times, especially in a situation where someone can easily walk up behind you? It sucks because it leaves us feeling vulnerable and unsafe.