Very wealthy people wasting a huge amount of society's resources to have mild fun doing something very risky then having to get rescued on the back of society at a high cost. I say let's enjoy watching them die.

Hey now, that money goes to support the families of the people who make shoddy tourist submarines, who then go on to spend that money on groceries and rent and so on, driving the overall economy. The money isn't really "wasted." If it weren't for these submarine tours the money would just remain sitting in rich peoples' wallets doing nothing.