Uber isn't built on a tower of fraud like Theranos, it's a behemoth that changed how transportation works. Travis is going to be a billionaire many times over when the stock is liquid.
He did not change how transportation works. He got where he is through a combination of luck, good timing, and criminality masked as 'disruption'.
Have you ever spoken to an African American what it's like to hail a cab? Read the estimates on the number of drunk drivers taken off the road?