Porque havia dinheiro a ganhar (a alternativa não era patenteável). Qual a novidade?
http://www.bbc.com/news/business-40593353
Citação:
"Better working practices could make tetraethyl lead safe to produce. But was it really sensible to add it to petrol, when the fumes would be belched out on to city streets?
About a century ago, when General Motors had first proposed adding lead to petrol - in order to improve performance - scientists were alarmed. They urged the government to investigate the public health implications.
Midgley breezily assured the surgeon general that "the average street will probably be so free from lead that it will be impossible to detect it or its absorption", although he conceded that "no actual experimental data has been taken"."
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