That guy's entire wikipedia page is an almost surreal read. For introducing lead into gasoline and the proliferation of CFCs, he was termed a "one-man environmental disaster". His death is equally fascinating. He invented a mechanical device to help him out of bed because of his polio-related infirmity, and ended up getting strangled by it.
Midgley's paralysis, as I understand it, was probably not due to polio but to lead poisoning.
Maybe the mechanical device had also achieved AGI?