Whistleblowers should be treated like heroes. Like not just protections where the reward is that they get to keep their job working for a company that is probably going to feel hostile towards them, but reward them so that they don’t need to work with that company anymore.
Publically funded science (done in the interest of the public rather than profit for universities or publishers) should also be ramped up so that it has the resources to examine these questions, too.
Also, criminal charges for execs that suppress information that prefers profits over safety.