Let's not commit the fallacy of comparing unrelated big numbers. How does the energy and time per usd transferred compare between btc and the traditional banking system?
In actuality, there are more dollar transactions that doesn't include, so the numerator is bigger. It also uses much much less than the total U.S. energy consumption, so the denominator is much much smaller.
A bigger numerator and much much smaller denominator tells me that bitcoin is much much less efficient than traditional systems in dollars traded per kWh.