I'm gonna indulge in a bit of snarkiness, because this comment frustrates me and I feel the need to refute it even after three days.

Did you know that thalidomide was very efficient in preventing early pregnancy vomiting? Or that benzodiazepines were much more efficient as anxiolytics than the preceding class of barbiturates. Antibiotics in general, we don't even need to mention them and their efficacy. Oh and if you want to help someone in shock with oliguria, load them up with diuretics, that's the most efficient method of inducing urine production after all!

My point is, understanding the causes of a condition is critical in finding an actual cure. You can have treatments, symptomatic or otherwise, even without it (see lithium for BPD, valproic acid for epilepsy, many others) and that's fine. But claiming that you don't need to understand the safety profile, potential side effects, risk groups, or anything other than efficacy is, as you say, horseshit.