That's its role in theory, but in practice, governments are made out of people, and people don't always have the motives they're supposed to. A government offic

That's its role in theory, but in practice, governments are made out of people, and people don't always have the motives they're supposed to. A government official might be more motivated by a desire to protect the profits of his friend's taxi company than by what's in the interests of society as a whole. It doesn't always work out this way, but I think in the case of companies like Uber, the interests of the company, the customer and society as a whole all align. To be able to make a profit, Uber needs to be perceived as safe. The most effective way to do that is to actually be safe.