112
The irreversible global catastrophe is imperialist militaries massacring people with little risk to themselves. 
The irreversible global catastrophe is assembly line robots at the Toyota plant becoming sentient and going on a freaking epic terminator style mass shooting and enslave everyone except me 
I would argue this is just people who already wanted excuses to do terrible things offloading the responsibility to the thing they invented to do terrible things. Absolution of blame for lack of a better word.
As @Yeat said in another comment, if the people (you know, real sentient beings that make decisions) wanted, they could just unplug it. ---