AI and robots free up human time for more meaningful jobs. Mankind will be more wealthy, not less, because to a laborer money represents goods. AI will lower the cost of goods, not raise them. The more goods there are available, the more goods the equivalent sum of money will command. Therefore, regardless if wages decline, human labor will be valued for tasks that AI cannot do. These are creative and inventive jobs. We will see a separation of labor from skill, and artisinal goods made by human hands or "proof of work" from a human mind will be far valued above anything created by a machine. The machines will provide our sustinence, and this will be for a very low cost because it will only involve commodities (things mass-produced) where humans will provide little value to assembly lines. People will be needed to perform investigative, creative, mental skill oriented tasks like troubleshooting the machines, like creating one-of-a-kind goods like hand-made items where human error and variation is a feature and increases an item's value. One observation I heard recently is that art, music, actors, and the like are values not for their perfection, but for its human authenticity. This is not something that can be emulated by an AI until it actually becomes the same as a human, including our limited and closely guarded ability to reproduce.