Music industry has been... not great with licensing and archives. There are recordings of Lightning Hopkins that only exist because of the Smithsonian Archives. And there are re-issues of that music today that only exist because of independent labels sourcing from those archives.
If the music industry had had its way they would have been done with Hopkins years ago and his music would have been forgotten, having moved on to the next crop.
Books are good at republishing. Film has been decent at it but suffer from licensing issues. Video games are probably the worst at archiving and maintaining access to libraries of prior art.
Locusts. Good analogy.