That's a post hoc argument.

The real danger is "We make mountains of money, but everyone dies, including us."

The top of the top researchers think this is a real possibility - people like Geoffrey Hinton - so it's not an extremist negative-for-the-sake-of-it POV.

It's going to be poetic if the Free Markets Are Optimal and Greed-is-Rational Cult actually suicides the species, as a final definitive proof that their ideology is wrong-headed, harmful, and a tragic failure of human intelligence.

But here we are. The universe doesn't care. It's up to us. If we're not smart enough to make smart choices, then we get to live - or die - with the consequences.