Human behavior is governed by a series of internal and external reward systems—from neurotransmitters to money. At its best, the external rewards system encourages pro-social and mutually beneficial behavior where mediated by a price system and the rule of law, including the institutions of common law courts. Ensuring pro-human and positive-sum behavior from AI agents will require further discovery and dissemination of standards. The common law of agency and public ledgers of digital rewards are two key tools for learning lessons and reinforcing them. If we want to avoid the twin dangers of Hobbesian chaos and Orwellian tyranny in a world of dizzying progress toward autonomous AI agents, we should pick up these tools.