I think the Watchmen movie is the only example I can think of where deviating from the source material was actually a good thing. Even then, it was a tempered change that still captured everything else about the comic, and they didn’t try to “fix” anything else.

You don’t make a successful book-to-movie project that makes millions of dollars by shitting on the source material that also already made millions of dollars. Hollywood writers are egotistical assholes that do not make millions of dollars. The book was successful for a reason. Don’t fuck up a good thing.