Bitcoin is a FULL system, you're seeing the whole thing, the mining is for securing the network AND moving value. Can you say that about any other system (that you are already so used to and blind to how it works)
I deliberately chose international wire transfers as the worst and most expensive way to move money. I assume everyone knows that you can move large sums of money domestically for mere pennies. Yes, that implies the total cost of the system is less-than-pennies per transaction, including human staff, hardware to run everything, taxes paid to governments which protect the system, everything. Yes, transaction costs are the right way to compare the cost of transactions, believe it or not.
Maybe Bitcoin is a FULL system. Big deal. If it's not going to share that FULL system with normal everyday life and its shared institutions, it bears the FULL costs of failing to share, as expensive as that may be.
I'll give you a hint: it's less than 1MWh/tx, which is what bitcoin uses today.
2283MWh per block. 1 MWh per transaction.
Also, you haven't spoken at all about the other side of the equation. Have you accounted for all the externalities for the other monetary network you are comparing Bitcoin to?
Moving value is valuable, but the resources expended in moving it do not provide value; rather, they come at a cost, like gasoline in your car.
And Bitcoin is pathetically inefficient at moving value. The average transaction fee has been floating around, what, $15-$30 USD? This is international-wire-transfer pricing range, if it's a single transaction and you don't do these transactions very regularly with your bank.
Don't count the value it provides on the wrong side of the ledger.