This meme needs to die. You think if bitcoin became a transaction standard there wouldn't be thousands of institutions and companies servicing the use of bitcoin? You don't think Coinbase won't become just like JPMorgan and employ 100k people to provide customer service? Just look at all the startups and people currently employed to figure out blockchain today. So take your assumption of all of modern-day finances's electricity demands and add that to the infinite loop of energy that is required to keep your bitcoins in existence whether you transact or not.