That's what doctors are paid to do. Unfortunately, they can't wait for the RCT's to be finished before making a decision, and so we train them well and pay them

That's what doctors are paid to do. Unfortunately, they can't wait for the RCT's to be finished before making a decision, and so we train them well and pay them well to make decisions under uncertainty. It's rather like software engineering, but with lives/health at stake.