Tether's story ends only if the owners get too greedy and exit scam OR if a large minority of people holding tether decide to cash out -- which shouldn't happen

Tether's story ends only if the owners get too greedy and exit scam OR if a large minority of people holding tether decide to cash out -- which shouldn't happen since such whales benefit from tether and other cryptocurrencies money laundering operations. Also, given that there are days when tether issued 3bln dollars to prop bitcoin, I'm sure the owners have made a lot of money by manipulating other legitimate cryptocurrencies prices.