Better healthcare outcomes are of interest to health insurance companies and employers, not the healthcare providers. A reduction in overall claims over a patient's lifetime and better employee health are quantifiable financial results.
Healthcare providers hope for better outcomes I'm sure, but it's true there's not much financial incentive in most cases. Your comment sort of suggests the model for such a service should be on a per-use model, covered by an insurance company when a doctor uses it for their patient. That's a trickier model than subscriptions, but it may be viable.
