Copyright doesn't just protect profit-generation with the property - it also ensures the original material is not altered over time.
Alas, this is a very useful function of copyright and basically ensures that good works remain good, and don't get easily subverted.
In this day and age, though, we've evolved better methods to ensure this alteration of original content doesn't have a negative impact (whether on the profit-making or indeed on behalf of the final user of the material).
Governments could shift from enforcing the copyright monopoly, to providing an open, public, free fingerprinting service - akin to a PKI for all content - which would allow entitites to copy materials, but also allow individuals to verify immutable materials.
>We shouldn't be handing out generational monopolies willy-nilly.
Agreed. We should, though, be making sure the end-date is set for 'verified materials' to a period appropriate for re-verification by human means ...