Ridiculous entitled view. At minimum, vets have to do undergrad + four years of vet school. If you find a board certified vet, they will have gone through 1-2 years of internships, and another 2-3 years of a residency, plus board exams. Technicians in many US states have to at least have an AA degree, but the competition is such that many have Bachelors these days. I know of a few that even have Masters.

And a lot of drugs are re-purposed from human medicine. Syringes, IVs, antibiotics. The manufacturers are not giving vets a discount just because it's being used in a rabbit. You just never see those prices for yourself because insurance hides it. The vets have to pass it on to you because their business is not a charity.

If you don't want top quality care for your pet and you don't value the skill and knowledge of a trained professional, there's plenty of bargain basement vets that are willing to cut corners.