And I'd just like to underline the fact that this is truly a devil's advocate position, not something I'd argue strongly for.
But for the LLM training data company, does that leak matter? I guess that depends on your stance about AI proliferation and safety. But if you don't it's at worst a boost for open source LLMs. Rockstar? A great deal of hard work has surely gone into GTA-6 between all the union busting but, but it hardly matters for humanity what particular game people use to entertain themselves. And the medical device company, although the wipe part is truly just senseless destruction, actually might benefit humanity more if a few bootleg factories of their products appear.
Many of these are very stretched scenarios. But for instance in the case of espionage, the problem is not the fact that people are spying, the problem is that there is a war. And the more nefarious regimes tend to depend more on secrecy and lies in order to perpetuate themselves. If total transparency was applied to all governments equally, most democracies would be positively affected. The problem is not the leakage of the Epstein files. It's that this kind of activity could occur in secret and remained covered up.
I can't believe I have to say this, but you can't simply delete an important facet of society (expectation of privacy) and expect things to turn out alright. People will still have hangups around prudish topics and traditions. And privacy has always worked as an escape hatch for people in bad situations, either locally (controlling parents and partners) or society-wide (facist governments, genocides).
Just because we can imagine a society where this information is public and everything still works, doesn't mean that there's a path from here to there.