PTSD leads to suicides. Very often. And even without suicide, people with poor mental health often live very short lives due to stress.
Also, please do not misrepresent what I said. I talked about not giving them safety equipment, not them dying in a mine collapse. Both involve not giving the workers protection they need for low pay and could easily lead to very poor health and short lives in exchange for being somewhat less poor than their neighbors but still poor. The miners are not given physical safety equipment and the workers for OpenAI are not given the mental safety equipment.