This does two things. It floods the scientific community with results favorable to action A, changing the minds of many other scientists. And it also makes it more likely that new labs use the methods that are more likely to favor action A, which is better for industry interests. This is because researchers who are receiving lots of funding and producing lots of papers will tend to place more students in positions of influence. Over time, more and more scientists end up favoring action A over action B, even though action B is objectively superior.
