Here is how individuals are treated for massive copyright infringement:
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Copyright infringement is unauthorized reproduction - you have made a copy of something, but you have not deprived the original owner of it. At most, you denied them revenue although generally less than the offended party claims, since not all instances of copying would have otherwise resulted in a sale.
And to be clear, we javelin the word infringement precisely because it is not theft.
In addition to the deprived revenue, piracy also improves on the general relevance the author has or may have in the public sphere. Essentially, one of the side effects of piracy is basically advertising.
Doctorow was one of the early ones to bring this aspect of it up.