[glofish]

Imagine that Mona Lisa was lost shortly after its creation ... do you think we would not have something else like Mona Lisa in its place?

Society created the value of Mona Lisa out of nothing. It is not such a unique thing - there are tens of thousands of paintings that could be just as valuable.

[johnwalkr]

OK and saving a bunch of film reels or tens of thousands of Mona Lisas takes a tiny amount of space in a salt mine warehouse or some megabytes or gigabytes taking literally zero space. It's not a zero-sum game where disposing of this stuff makes more room for future artists.