Last September some of the world’s foremost technology industry leaders met in Seattle with Xi Jinping, president of China. In a group photograph, 30 CEOs with a combined market capitalization of $2.5 trillion smiled for the camera alongside the Chinese leader. They included Microsoft CEO Satya Nadella, Facebook CEO Mark Zuckerberg, and leaders of some of the most prominent “sharing economy” companies: Airbnb CEO Brian Chesky and Didi Chuxing CEO Cheng Wei, the head of China’s leading taxi and private car hailing app. Conspicuously absent from the photo was Uber’s CEO, Travis Kalanick.