Thought experiment: 1. Wikipedia is available to approximately 5 billion people globally (or will be soon). 2. The Print version of Encyclopedia Britannica costs $1,400 per copy. So does the existence of Wikipedia, (economic GDP value = ~zero), add 5B * $1,400 = $7 trillion of new wealth to the world?
Corollary: Are Jimmy Wales (@jimmy_wales) and colleagues the biggest monetary impact philanthropists ever? Does this leave JDRockefeller and WHGates in dust?