I took a deep dive into DuPont and teflon.....the magic non-stick that coated every frying pan back in the day. "Deep Waters" is a movie based on the story. Basically, DuPont knew that the chemical they were producing was harmful, but teflon was their cash cow (similar to the big tobacco cover up). Took very determined folks to expose it all as the EPA looked the other way ($$$).
The settlements were a fraction of what the company made on the product, so their wrongdoing was still profitable. This stuff is happening somewhere right now if I had to guess. Without adequate consequences, these companies will continue to put profit over people. History of America, I guess.