The scribes were actively copying the books, this is a continuous preservation process that's familiar to everyone, it's the same thing that talking about the bees and the birds covers. It requires expending continuous effort (and funding), and planning ahead. It's toil. And, as you noted in your last sentence, it not only allows for errors, it affords errors. Translation is an act of interpretation.
In contrast, recovering text from 2000 year old charred embers is cultural equivalent of resurrection. It's like finding an ancient human frozen in a block of ice/ancient cryopod, and thawing them - which itself is a scientifically plausible subset of bringing back the dead.
I'm not sure what analogies would be best to explain that to people from 2000 years ago. Food preservation? Or hoping they can conceptualize thawing a person who fell into an icy lake indefinite amount of years earlier?
The "selfish gene" perspective is that genes are the information, and life is just a mechanism for "scribes" to continuously copy over the text to propagate that information, with a little twist that the information itself plays active part in creating scribes (neatly self-referential, biology is).
Problem: in this analogy, humans are books. We'd very much like to last forever, even though the system around us only carries about preserving some patterns inscribed in us, that we couldn't really care less about ourselves. Hence the conflict.