Tim Berners-Lee sells source code for the worldwide web

Of course it's been open-source for years! But the original digital document remains in his possession and is of huge historical interest. Now the father of the web is going to auction this document for charity as a unique non-fungible token on the ethereum blockchain.
Quote:

The files include code with approximately 9,555 lines which feature implementations of the three languages and protocols invented by Sir Tim that remain fundamental to the World Wide Web today, known as HTML (Hypertext Markup Language), HTTP (Hypertext Transfer Protocol), and URIs (Uniform Resource Identifiers).

Which raises the question: is this really a public-spirited thing to do, given that NFTs have a strong whiff of scam about them and blockchains are guzzlers of energy?