As to job losses, most ppl especially the prediction making buffoon class, have not worked with these systems long enough to understand a simple fact of life - the more complex system gets, the more bugs the system has. Not less. And then you need ppl to manually handle all those issues.
These systems are overflowing with unhandled issues, just like prev hyped up tech like social media, crypto, the meta verse, self driving cars etc etc
If you had to pay someone for their data to train on, the balance of power shifts to those who have skills worthwhile the AI people want to replace: writers, artists, scientists, developers, etc, and they would not charge cheapely, if at all. Another possibility is a situation similar to software companies today, they'd only give you basic data to train on, leaving the crown jewels under wraps.