You make an interesting point. I think ideally what we want is:
* easy automation for those that need it; if corporations want to driverless tractors doing all their farming, so be it. They're responding to a market that is demanding a lot of cheap food.
* occupation as a choice; the productivity gains from automation shouldn't all just pile on to the people who made the investment; but it could be used to provide necessities to those that need them. So a small scale farmer, for instance, would not be competing directly in the same market as the corporation, and they wouldn't need to make a profit to do what they want to.
Human brains are great at seeing patterns; we shouldn't be wasting them on repetitive work that can be mechanized. Let people do what they want to without existential threats and see what happens.
In a certain sense, this is already true for the wealthy. The nature of wealth is that it gives you safety nets to fall back on if you fail at what you want to do. A lot many of the greatest artists came from wealthy backgrounds.
I would honestly want a lot more people creating art, video games, curing cancer etc. than have more people picking crops.