I wouldn&#x27;t say that either Theranos or Clinkle have changed the world.<p>I would say that Apple, Google, EBay, Uber, Android, and Twitter have, but Steve Wozniak, Larry Page, Pierre Omidyar, Garrett Camp, Andy Rubin, and Evan Williams are far from charismatic.<p>This is more an example of &quot;You can fool some of the people all the time or all of the people some of the time, but you can&#x27;t fool all the people all the time.&quot;  Charisma can help fool a critical mass of people early on, but once you try to expand to a product all the people use all the time, you&#x27;ll fall flat on your face.  Build something useful and then you don&#x27;t have to fool anyone.