In reality, the absolute harm done to me (if any) is probably very limited. Maybe my lifelong risk of cancer has gone up by some quite small amount. The greater harm is damage to my trust in the organizations that produce my necessary medications.

So the recourse is probably not giving me anything extravagant, it's probably more about some sort of fix to oversight, regulation, corporate penalties paid for this, etc. None of which is likely to happen as a result of a lawsuit, except maaaybe the last one.