That’s an interesting question. I think that companies everywhere would be extremely happy to save the money, time, and hassle of going through GMP processes but ultimately, I think that something else would take its place that would not be required but make a company more competitive to have those standards. For example, similar to how the CE marks are in the EU. Companies with these marks on their products become a more trusted company for meeting certain standards.
Personally, I’m not sure if I would want to purchase a medical product that was not up to some sort of standards, whether it was GMP or something else. When you think about it, without GMP standards, the knee replacement that you could be getting could be dropped on the floor of the production hall, picked up, and put into the packaging and put directly into you, bacteria and all, without any sort of check or requirement that it not be covered in pathogens or chipped while being made. The same goes for any food that you would ingest. A fruit drink may be made on a milk shake machine prior to it being produced, but without GMP cleaning standards, your fruit shake will taste milky because it has the flavoring/taste of the previous product.