@Webbie: Yes, doctors, nurses (and many other professionals) are required to be registered ... but that doesn't seem to make much difference to the amount of
malpractice we constantly hear about, unfortunately.

OK ... let's take the example of the hospital biomed, and (for instance) the tech working at a manufacturer's service centre. Perhaps there's a case to be made about the hospital tech "interfacing" occasionally with *patients ... and that's why s/he needs to be "presentable", and with a modicum of empathy, let's say. But "personal characteristics" (human qualities) like this are usually readily apparent, if not at interview then at least "on the job" (or by peer review, if you like).
On the other hand, why should the guys working every day at the service agents' workbench be registered? What is to be gained there? They are being employed for their technical (electronics, fault-finding
etc.) skills, not their social attributes! After all, some of the best "Genius Guys" I've ever come across were long-haired, scruffy, dudes, wearing T-shirts, swearing a great deal, and engaging in almost constant "outrageous" banter!

*
If indeed "protecting the patients" is in fact what "Registration" is meant to be all about. I don't know. Is it?