Here in the real world, that manufacturing cost is largely irrelevant.
I think this comment perfectly proves that this is relevant.
Manufacturing is quite relevant. If the actual cost of "discovered and proved effective" is far lower than claimed, then manufacturability becomes a concern. If the cost of discovery and proven effectiveness is borne by governments and universities, then the manufacturing is the only cost borne by the pharmaceutical companies.
It was a learning experience: always look in the place where the thing is. It saves a lot of time. Her problem was that she first checked all the places it wasn't.
This is true even if you find it the first place you look.
A big part of the issue is too readily discounting or assuming where it isn’t too early. It’s often better to methodically search sections and areas at a time in a thorough process of elimination even of places you know it isn’t, just as a matter of practicality, and so the process of elimination is actually fully eliminating possibilities, and not just confirming biases.