How much of knowledge has come about by tragic "woopsy didn't know that was dangerous" method. I just pity the poor bastards who lived in the periods of time when Drs didn't know shit. Thankyou to all those guinea pig patients and mentally ill people and soldiers and gay people who were subjected to medicinal "torture" in the name of advancing knowledge. Also thankyou to all the lives sacrificed so we could find out smoking wasn't actually good for health or asbestos was not such a great idea or lead was toxic or thalidimide was a total cock up and don't even get me started on the latest thinking carbs no carbs diets etc so on and so forth..... Fact:science gets it wrong sometimes.
Absolute blind faith in anything and everything called science could be classed as an "ism" but I think anything has the potential to become an "ism."