BD, I don't know what country you're in, but your figures are very strange, maybe they're affected by insurance. Polly, one of my cats, was ill a few months ago, and my vet, who isn't particularly expensive, said that an MRI would be approx £2,000. His consultation fees are usually about £16.
I have MRI scans on the NHS about every year or so (I'm epileptic) and know that if I paid, they would cost about £10,000. I suggest that the cost you quote has been affected by the BUPA cover.
This guy wasn't just handing out drugs of dubious origin, he was DIAGNOSING animals - something which only a trained and devoted vet should do. If the report was correct, he gave antibiotics to a dog the reporter told him was bleeding from the teats. These symptoms could indicate cancer, but he hadn't even seen the dog.
As to the supposed vaccinations, he was probably injecting water!
Shooting an animal as a method of pts is as bad as drowning kittens as a method of feline birth control - it went out with the dark ages (for most people!).