“Your honor, I know I told the customer that the chemical I sold to them would cure their disease, and it didn’t, and I had enough information to know that, but you see, I wasn’t conscious that it wouldn’t cure their disease, as I was selling it to them, so it isn’t really fraud” would not fly in any court that is even seriously pretending to be executing justice.
(just to provide the keyword: the relevant legal doctrine here is that the seller “knew or should have known” that the drug wouldn’t cure the disease)
(just to provide the keyword: the relevant legal doctrine here is that the seller “knew or should have known” that the drug wouldn’t cure the disease)