Yes. Also it's called then placebo effect for a reason. Because the effect is real. Placebo effects can cure cancer. Feeling better is important if not the ultimate goal. Some medicine may be a combination of placebo and effects we don't understand.
A couple of random thoughts and then I should probably just bow out of this discussion:
1. I get dismissed a whole lot as my experiences being placebo effect or hallucination or whatever. My kids and I mockingly say "If just believing I will get well will cure us, I will take that. That must mean we have some of the most powerful minds on the planet."
2. When they do studies, they often use sugar pills as a placebo. I find this questionable. Sugar is an actual chemical. I use it at times for things like pain reduction. It doesn't work the same as a pain killer, but it does a good job of taking the edge off. Presuming that sugar is inert and has no impact on the body is a flawed mental model.
