For some medications those side effects can be severe though - I think there's some rationale in actually purposefully leveraging the placebo effect without giving the patient a medication that could harm them.
Well, to be honest - that's kind of a uniquely American problem. Lots of places in the world don't have free pharmacare but only in America is the cost going to be so incredibly significant that the profit motive is strong enough to encourage charlantry.
I mean, this might have been the case when standards of medical practice were so bad that the homeopathic hospital was one of the safest places to be because whilst the medical care there was purely placebo, that was better than a doctor with unwashed hands attempting crude surgery.
But modern treatments are evaluated based on having demonstrable net positive effects above and beyond placebo.