That isn't how that works. That is an incentive program for pharmaceutical consultants and sellers. The doctor doesn't make money directly off of any medication as that would be a really dumb business model. "Aha! let's sell Vaccines for $25 and then pay $400 to doctors for selling them" No, what that incentive program is actually doing is giving a $400 kickback if you can sell a hospital to use their Vaccines over the competition. $400 is a more reasonable kickback when you realize it is for a contract to use that particular product for a period of time at a hospital.

Probably shouldn't link a sourceless piece that has to use things out of context. Especially from an author that has to say "My friend is a lawyer from a top 10 college" to establish credibility. The website writes like a first year college student. They read something interesting, writes a short article and adds 2-3 random sources they don't completely understand. They link a lot of the NIH articles that were debunked after peer review, they could see it if they just clicked past the abstract page.