Regulation or protection of titles does nothing to prevent patients suffering from poor workmanship.
Builders and doctors have all sorts of associations and institutions that do not prevent problems, believe me I have suffered at the hands of these people, and it is not possible to get any sort of redress after the fact
Patient protection comes from training, a commitment to do the job properly and to conform to particular industry requirements.
Many years ago I belonged to the IEE. I left because the only thing I was getting out of it was the magazine, job vacancies etc. and the ability for other people to comfort themselves by assuming I must be qualified for the job.
In my book Institutions are not worth the fees they charge or the reverence they are given.