Besides, lots of excellent drugs are used in a trigger-happy way. Take for instance antibiotics, which are one of the greatest achievements of modern science. Lots of children are prescribed antibiotics for mild infections, i.e. when they don't need them, ignoring side-effects. Thankfully, doctors are starting to be a bit more cautious.
This is one of the reasons autoimmunity has skyrocketed during the last 50 years, and quite a few friendly commensal bacteria are nearly extinct. Persistent gut inflammation, below what is considered autoimmunity, is responsible for lots of colon cancer cases in adults. It is all tied.
How many more decades do we need?
Given we are seeing plunging birth rates and species unprecedented rate (a dozen to hundreds of species a day), I'd say shifting to a "you have to prove it's not harmful" is a good policy.
What worries me is this is always going to be about a quick buck vs long term risk. We do not have the collective wisdom to stop.