This is not how 'creating value' works. If you create something that sells for $100 but cost $100 to be produced, you have created zero value, and if it cost $120 you have destroyed value. In economics this is called added value, it's defined as the value of the output minus production costs. The sum of all added value over a period of time amounts to the GDP.
But if I build an ASIC computer for $100 and sell it to some miner for $120, have I (the ASIC company in China) not created $20 in value?
If Bitcoin goes to zero I still made my $20.
If you mine $100 worth of Bitcoin, there is $100 worth of Bitcoin created, whether the electricity cost you $20 or $120.