A doctor using prescriptions to pressure clinical trials into going the way she wants them to. What could possibly, possibly go wrong. (What does that even mean, nobody's actually yanking anything, they're just threatening to do so to coerce people? It sounds creepy and manipulative.)
The analogy breaks if you take it too far. This is politics, not medical science. Good clinical trials will discover facts about the world. Good politics will change the world, making previously discovered facts irrelevant.
Threatening one another into taking action is exactly how progress happens in a market economy. Somebody is always threatening to drive somebody else out of business. Either you disrupt or you are disrupted. And since we probably won't be getting rid of this ruthless system anytime soon, I'd rather want to see the good guys drive the bad extortionists out of business rather than the other way around.
