The medical system is tuned towards handling acute symptoms.

It is not well tuned to give advice like "Given you have this specific genetic condition, take this vitamin and avoid folic acid and you will have significantly less nerve pain in a decade."

To diagnose a subtle problem takes tons of cognitive labor, much more than a doctor can do in a 15 minute visit.

Wellness is about being healthy, not just fixing the stuff that's broken.

One reason osteopaths do a good business: people with a medical background who are willing to dig into a problem with a patient and do the cognitive and emotional labor.