[dragonwriter]

> Criminal, sports, and academic concerns are all governed by bodies that impose those sanctions. When Google imposes a sanction they are the judge, jury, and executioner.

Actually, in all of those cases, the judge and executioner (and, usually, the legislature making the rules) are all employees of the same organization. In some cases there is a separate jury as a finder of fact (e.g., in criminal cases in the US and countries similar legal systems), though in sports and academic cases there may well not be, depending on the particular rules of the particular organization.