But why would the corporations (or rather, their owners) even bother to do that, once robots are producing everything? And what would the poor buy those robot-made goods and services with? For money to work as universal medium, it needs to circulate - but if everything that the rich consume is made by robots that the rich also own, and it's cheaper than a human's living wage, then all trade would happen in that circle, and money used for that would never leave that part of the economy. So people outside of it simply wouldn't have anything useful to buy goods with.

Or, to put it in another way - any wealth transfer from the haves to the have-nots in such an arrangement would be pure welfare. Which, given a socioeconomic system that does not encourage altruism, to put it mildly, would only be done to the extent that is necessary to prevent a torches and pitchforks situation. And even that would only be the case until making killer drone swarms is a cheaper way to prevent any would-be uprisings than bread and circuses - and I think that, thanks to the likes of Anduril, we're already well on the way there.