To be fair, a placebo can be helpful in its own way. And a 'good' placebo might need to have various methods, tastes, shapes, sizes etc; on the other hand it would be more psychotherapy than what people think of when thinking 'medicine'.
Something that 'helps' in a measurable way with no drawbacks is a useful tool to have. It does of course not mend broken bones or suture cuts in the skin.
If those treatments have been studied in a scientific manner, then the reconciliation, so to speak, has already happened. But, how do we define the effectiveness of treatment? In some cases, using a placebo has shown some effect, but that's because the hypothesis about the effectiveness of a proposed treatment didn't pan out.