Bernie Madoff ran his Ponzi scheme for 25+ years... Just sayin.
Again, no way to prove 100%. But think about it, the Bitfinex CEO is already super rich from just operating one of the largest exchange.
Probably, he has a billion or more in legit money+ cryptos already. Why risk lifetime jail and bounty on your head just to make another billion or two
from printing tether?
History is filled with people that had lots of money and yet still did something illegal to get even more. There seems to a point where they start to think they're above the law, immune etc. What's logical and smart to us just doesn't seem to be the case for them for some reason. I remember hearing one rich person say something about it reaching a point where it was no longer being about the money, but all about the "game".