Considering that we don't seem able to appropriately tax the biggest corporations, why do you think we'll suddenly be able to redistribute LLM gains?
Far more likely is that wealth and power will become even more concentrated into the hands of the few and the rest of humanity will become effective slaves.
These doomsday theories sound solid in practice but in order for someone to accumulate a lot of wealth there have to be consumers to chip into this. If we are all slaves, where is that wealth going to come from?!