Let's say that individual humans have the right to keep secrets. Let's also say that they have the right to keep secrets with their associates, and to tell them to who they please. Now, doesn't that make it legal for a group of people to keep secrets about you? What about selling them? I just don't see what doing away with the legal fiction of corporate personage would do about Facebook.
It may not be your intent, but you're using some very vague, inapplicable terminology to make some screwed up behavior sound normal.
If you can tell secrets to who you please and sell them on the internet, they aren't secrets. Somewhere in the middle of what you're saying, the secrets stopped being secrets, but you kept using the word as if it still applied.
Facebook isn't a group of associates trading anecdotes about their friends: the server guy has never met Mark Zuckerberg, and they are not "associates" in any meaningful way. They're not friends, or even really allies: Facebook certainly has shown inconsistent concern for the well-being of its workers. So let's also drop the "associates" terminology: these aren't "associates", they're employers and employees. Employees aren't acting as individual humans on their own behalf, they're acting on behalf of an organization.
Putting aside the rights conversation for a second, let me ask you a question: if you tell your friend a secret in confidence, and they turn around and sell it to anyone on the internet who will pay a low fee, that would be pretty screwed up, no? We don't even have to talk about rights here: this is just screwed up behavior, regardless of the rights conversation.