So you're agreeing at least in part with my original assertion, then. Namely, that we probably need to be less willing to pay high prices for drugs (and by extension other treatments) because in many cases they are of much less value than other things we could buy instead. Right? I mean, overtreatment has negative value, so it's hard not to imagine that what was paid for it couldn't have been better spent on something else. Anything else. Throwing the money into a fire would have provided more value.

No. Over testing and over treatment is unrelated to the (initial) high price of drugs and other treatments.