The taxi-hailing company Uber brings into very sharp focus the question of whether corporations can be said to have a moral character. If any human being were to behave with the single-minded and ruthless greed of the company, we would consider them sociopathic. Uber wanted to know as much as possible about the people who use its service, and those who don’t. It has an arrangement with unroll.me, a company which offered a free service for unsubscribing from junk mail, to buy the contacts unroll.me customers had had with rival taxi companies. Even if their email was notionally anonymized, this use of it was not something the users had bargained for. Beyond that, it keeps track of the phones that have been used to summon its services even after the original owner has sold them, attempting this with Apple’s phones even thought it is forbidden by the company. Uber has also tweaked its software so that regulatory agencies that the company regarded as hostile would, when they tried to hire a driver, be given false reports about the location of its cars. Uber management booked and then cancelled rides with a rival taxi-hailing company which took their vehicles out of circulation. Uber deny this was the intention. The punishment for this behavior was negligible. Uber promised not to use this “greyball” software against law enforcement – one wonders what would happen to someone carrying a knife who promised never to stab a policeman with it. Travis Kalanick of Uber got a personal dressing down from Tim Cook, who runs Apple, but the company did not prohibit the use of the app. Too much money was at stake for that. Millions of people around the world value the cheapness and convenience of Uber’s rides too much to care about the lack of drivers’ rights or pay. Many of the users themselves are not much richer than the drivers. The “sharing economy” encourages the insecure and exploited to exploit others equally insecure to the profit of a tiny clique of billionaires. Silicon Valley’s culture seems hostile to humane and democratic values. The outgoing CEO of Yahoo, Marissa Mayer, who is widely judged to have been a failure, is likely to get a $186m payout. This may not be a cause for panic, any more than the previous hero worship should have been a cause for euphoria. Yet there’s an urgent political task to tame these companies, to ensure they are punished when they break the law, that they pay their taxes fairly and that they behave responsibly.