I you haven't adequately addressed why we should care "if facebooks earns anything". The importance existing stakeholders is a contigent detail, not a necessar

I you haven't adequately addressed why we should care "if facebooks earns anything". The importance existing stakeholders is a contigent detail, not a necessary truth. It's like evolution: things in society (inventions, ideas, protocols, whatever) exist because they popped up and then survived. One way to survive is to provide a revenue stream for profit seekers who will look after you in return. Many thing work that way, but many things, such as human languages, and the TCP/IP protocol survive in other ways. Of course all these things do profit people, and are kept around as a result, but through mechanisms quite different to the ones you are talking about.