I would say that in the Third Reich, the lawful Nazi government ordered government employees to do certain awful things. People followed the law, and kept records, and were good little citizens.
After they lost the war, there were trials, and people were prosecuted for war crimes and it was clear that following orders is no defense.
The Big Pharma situation strikes me as similar. Oh, it’s experimental? The companies have immunity you say? It’s all covered by contract law and FDA regulation? The major players are good little citizens?
These people are losing the war. There should be trials. And people should be prosecuted and some bureaucratic record-keeping and adherence to the orders of higher-ups should be swept right off the table. “You did bad things, and we are going to punish you. You have no defense.”
At this point such trials have to happen to restore any faith in our institutions. The current dynamic might delay such restoration: Many still trust the corrupt because of political tribalism.