I get your point, but the situation is not much better in non-free markets as well. Regulators have a price for which they can be captured.
Despite existing corruption, I do believe the FDA is less corrupt than it is corrupt, and for the most part they do have the public good as their primary interest.
My free market comment was more about this theory of self-regulation and trust. Clearly that gets violated time and time again, and here is yet another case to the point of knowingly harming their own employees for decades!
The bigger issue is this non-regulatory environment for so many chemicals. Innocent until proven guilty, especially for thousands of drugs already popular when regulations were enacted (in the 60s?), is just irresponsible. The list of drugs in the blood of the entire pollution just keeps growing... How long before we realize the permanent harm potential?