It does not indeed, but one is wise to not get pissed off when privacy is breached. It's fighting the current, and hopeless.

Much wiser is to not upload anything anywhere that you would not like to see posted publicly or read by someone; or at least strongly encrypt stuff and deal with the inconveniences that it brings.

My point is not that privacy breaches are excusable, rather that they will happen eventually, even if privacy was promised/assumed/implied.