Most roads are generally a public good, which are not used to generate profit to enrich a small number of people. It's also clear where they lead and how they w

Most roads are generally a public good, which are not used to generate profit to enrich a small number of people. It's also clear where they lead and how they work. Facebook on the other hand have put themselves in a position where they make a profit my offering proprietary mediation (via content selection algorithms and censorship) on top of UGC, as an ad-revenue optimization engine. Once you're in the optimized-mediation business, you're faced with lots of choices, and many of them will pitch people's lives against your profits (not just ad-revenues, but how many people to hire, and where to invest them).