When it comes to profit per employee, Tether is the most profitable company in the world. It may even be the most profitable business in the history of business. With $13.7 billion in profit last year and only around 165 employees, that’s over $83 million in profit per employee. It’s a staggering figure—blowing NVIDIA (NASDAQ:NVDA) and every other company out of the water. It’s literally off the charts. Has any business in history ever generated this much profit per employee? If there is, I’ve never heard of it. Tether gives…