The data-selling business model is just one aspect of what could be considered harmful, another aspect is the privacy aspect. For example, potential employers looking through your Facebook posts to see what your personal views and social life are like. It&#x27;s possible to argue that it&#x27;s possible to limit access to Facebook content, though there are often changes made to Facebook that make such privacy harder to obtain.<p>So when working out the price of a service like Facebook, it&#x27;s important to include the cost of privacy (even if this is effectively impossible to put a numerical value on).