Again, those don't have being inefficient by design built into their core. It's to everyone's best interest to make video games, leisure travel, and fashion, as efficient as possible. Cryptocurrencies' proof-of-work concept relies on being inefficient. If you get more efficient, difficulty goes up, to keep the process inefficient.

None of the unimaginable amounts computations wasted on proof-of-concept have any inherent value at all, until someone hits that final "lucky" one, that allows the transactions to take place.