[stcredzero]

The most valuable workers in our economy are underpaid (farm workers, waitresses, teachers, etc.), if they aren't totally voluntary already. (parents and caregivers)

Your analysis is fatally flawed from this point. Teachers are valuable, and I feel they should be full-on professionals paid like we pay coders. Farm Workers and Wait Staff could be valuable, depending on what level of skill, diligence, and expertise they bring. Those two categories cover a very broad range of levels of expertise.

Parents and caregivers didn't start out as a part of the economic system. They also don't necessarily have to be paid. It has been noted that paying people to do what they'd do for free often has well known pathologies associated with it.

This type of motivation is what leads impoverished South Americans to destroy the largest rainforest on Earth, or African children to work in gold mines exposed to toxic mercury, dragline fisherman to deplete great oceans full of life, the list is endless.

This only shows that our world has incentives that are sometimes way out of whack. It doesn't then follow that the answer is basic income. Other societies have tried "from each according to their ability, to each according to their needs" with following drops in productivity.