If you have nothing to hide, if you're actually working for eight hours, or 10 or 12 hours, however long people decide to work, it's OK to have windows around conference rooms, it's OK to have cubicles. Because you're actually working. If you're not working, doing social media and spending half the day for personal stuff, then an environment like this will actually bother you.
Body language is a very powerful tool. We had body language before we had speech, and apparently, 80% of what you understand in a conversation is read through the body, not the words.