Earlier quoted context omitted.
They're even covered by some insurance plans. A friend of mine is an orthopedic surgeon, and they explained to me that for mild problems, which would normally heal on their own, it's cheaper to cover a placebo rather than real medication.
While I hear this argumentation a lot, I still struggle with this: If you have "mild problems, which would normally heal on their own", buying no medication at all would be even cheaper. And from an ethical point of view, the idea of financing a whole (homeopathic) industry that uses your money to produce fake science, even with a single cent, should make one shudder, shouldn't it?
No medication is even cheaper, but the placebo effect works, so if people were to take something, might as well have them take something cheap and harmless. In my opinion, it doesn't justify supporting homeopathy, but health insurances may see it differently.
Placebos are an interesting ethical issue. Doctors are not supposed to deceive you, they are people you trust with your life and very personal issues and they are therefore held to very high standards. But even if it is for your own good, the placebo effect is based on deception, so is it ethical for a doctor to give you a placebo? And is fake science that still help people ethical? The consensus seems to be "no" for both and I tend to agree, but I still think it is worth debating.