> Besides, it's not clear to me whether these AI tools be used to benefit humanity as a whole

Of course they benefit humanity as a whole.

• Language models allow computers to understand complex ideas expressed in plain english.
• Automating art production will make custom art/comics/movies cheap and readily available.
• ChatGPT-style AIs (if they can fix hallucination/accuracy problems) give you an oracle with all the knowledge of the internet.
• They're getting less hype right now, but there's big advances in computer vision (CNNs/Vision Transformers) that are revolutionizing robotics and image processing.

>I really hope this case sets ome decent precedents about how AI developers can use data they did not create.

You didn't create the data you used to train your brain, much of which was copyrighted. I see no reason why we should put that restriction on people trying to create artificial brains.