Is it "not so bright after all" to have surgery, to take antibiotics, to take oral birth control. All carry risks.
The truth is that ALL medical procedures carry some statistical risk, as does taking a flight in an aircraft for that matter. We tolerate that risk because an adverse outcome is a statistically insignificant event and the positive benefits outweigh the risk.
If you start questioning regulatory processes then I recommend you avoid all medical treatments from now on, aviation too for that matter.