Zerozero, read my posting a little closer. The non-profit hospital was being very generous in allowing low-time pilots build experience. They (the student pilots) did not pay for the time, and as I mentioned, the hospital even provided free meals during their time there.
The aircraft do not require two pilots (Cessna 421 and 425). The Ops Specs were modified to allow a second crew member, but did not require it. This allowed the student to log SIC time on the FAR 135 legs (with patient on board).
The cost to the time builder? Zero, nada, niente, zip.
So what is your beef? What does this arrangement have to do with not being a professional?