In order for capitalism to work, money has to change hands. Typically, money changes hands for an item or service of perceived value. Again, typically, there is a profit calculated into that transaction. That small fraction which constitutes the profit is often wealth transferring from one person to another. Over time, that wealth coalesces into fewer and fewer hands. There are many ways to combat this pooling of wealth into the hands of the few, but none of the traditional ways appear to work in the face of automation. Capitalism will fail if people do not have money to spend.
We exchange value based on price discovery; but prices are determined by leverage, which is heavily tilted by pre-existing capital. One doesn't notice this at a micro-transaction level (how many shoes for how many chickens), but once one zooms out to the balance of power between labor and capital, one clearly holds all the cards ~90% of the time.
