Re: Higher education = club membership ?
I will have to disagree with you on facebook, twitter and paypal. Facebook changed the way businesses interact with their customers, it is not just for selfie-obsessed teenage kids anymore. Twitter revolutionized the way we get and propagate news and paypal was the first to get launch electronic payments, which you will see more and more of going forward. Uber is sufficiently disruptive, but not sure its effect will be felt outside the metropolitan areas.
One can point to their misuses, but then that has been a challenge for every new technology.