People and companies knowingly contaminating food products with poisons like lead, should be put in jail. Companies knowingly selling such products, should be at least heavily fined, possibly prosecuted as well. Bottom line, this is clearly poisoning (and killing people) to make a few extra bucks. There should be no leniency whatsoever for this clear evil.
There is no fine value appropriate that isn't "considerably more than the company is worth" for that kind of blatant violation.
You should not get to continue to exist after poisoning people for profit margin.