But the UBI model has a couple of big flaws. First, it would create a powerful new magnet attracting immigrants to the Western world. Stopping them from arriving, and screening out those who slip through from claiming the basic income, would require even more draconian security. Second, a UBI would sever the link between effort and reward. People like to feel valued. Work is not just about economic reward. It is also about purpose and self-respect. Idleness is a soul-destroyer.