I'm not convinced that anyone getting a degree outside of a professional field (medicine, law, etc.) are any more hireable than someone with drive.

It is a drug.It has many medicinal values, but to each their own. 

IT, engineering, medicine) are carrying up the ROI to that high because those degrees may have an ROI of 60-70-80% or higher.

Unless you plan to get a degree in medicine, law, engineering or some other "professional" degree it's my opinion that college is as much, if not more, about the experience then the actual physical degree.

What most people don't know is Sports Medicine was founded in Birmingham (HealthSouth).

Many in the medical field though are frustrated with pay systems and healthcare reimbursements.. its not all wine and roses :)  but the folks I know in medicine like you say do quite well and are intelligent enough to invest wisely. 

Following your logic, we shouldn't need a license to drive a car or practice medicine.

If this model worked then universities would be doing it with more established industries like medicine and law.

We try to mend it with either stitches, medicine, or bandages, in an attempt to make it heal so it'll go away.  

Food, Medicine, 1 Roof over your head..