You think Pfizer and Moderna are somehow coordinating a global censorship campaign to defend that income? Sure, Pfizer's projects $82 billion in revenue is real money. But it's less than half of Amazon's income. Facebook brings that much in every year. Apple and AT&T crush these numbers, but nobody's going around deleting every tweet about how Mac OS has gone downhill or AT&T's cell service sucks.
In other words, it's just not enough money to have this kind of pull. Even if Pfizer and Moderna were lying their asses off to everyone who would listen, they just don't have the cash to buy off every medical expert and microbiologist of any standing -- and even if they did, the relevant government agencies can't accept hush money and aren't particularly interested in advancing some cartoonish corporate ruse.
Biological and medical research is a competitive field; most of these people slogged through six or eight years of underpaid postdoctoral work just to build the qualifications to participate in meaningful research as PI. Are there crooks who will take a check to parrot a party line? Sure. Is that common enough to enable the kind of overwhelming consensus we see today? Absolutely not ... but let's say I'm wrong: there just isn't enough money to pull it off.
This is why the current crop of conspiracy nuts insists the scheme isn't just about profits but also about some kind of vague assault on unspecified civil liberties -- it's necessary to ascribe actual evil to the movitation before it's even remotely believeable.