My dentist recommended me a stupid toothpaste called "Pearls & Dents" which also contained literal plastic balls. Such a stupid and corrupt person. I believe Dentists are paid by Elmex in germany too.
They are. I went through pre-med for my postmortem science degree and am still close with my doctor/dentist friends from the program. They get kickbacks from companies if they successfully sell a brand. Sometimes the results are great, like Wakix (my Narcolepsy medication that actually helped), but other times, it's a garbage product. If the medical professional has a fancy pamphlet or offers you coupons for the product, that means the company is paying them.
I was once offered a job peddling prescription drugs to GPs on behalf of several manufacturers. These marketing companies are mass-interviewing, you know. And so, there's never a shortage of these hawkers.
Ever wondered why you have to sit in the waiting room for a full hour when your appointment is scheduled at 8? Your doctor is talking to salespeople.
I'm in the USA, where you do pay, but the companies hawk drugs and other products anywhere that they can get approved by the government drug administration