The vast wealth of Silicon Valley - the $100,000 Teslas that zip up and down the freeways, the walled-off estates of the tech titans, the exclusive parties and the expensive restaurants - all of these do not exist because a few smart whiz kids had an idea that they turned into an app. They exist because of people like Audry Bialura in the Congo, Yu Tiang in Shenzen, and Bill Woolcock at the Staffordshire Amazon fulfillment center. Gadgets are forged and shipped through their labour. And for every Mark Zuckerberg, there are 10,000 Yu Tiangs and 100,000 Audry Bialuras upon whom Mark Zuckerberg stands, like a circus performer atop a human pyramid.