From one of his other articles he linked: >Similar arbitrages exist everywhere. My old roommate for a while was buying Toyota Prius’ and paying people minimum

From one of his other articles he linked: >Similar arbitrages exist everywhere. My old roommate for a while was buying Toyota Prius’ and paying people minimum wage to drive them around taking Uber rides. He'd then take the difference between what Uber paid him and what he paid his drivers… often 5-10k a month. Is this legal?