I used to put effort into those people. It was a waste of time. Now I just do everything I can to ignore them, work around them, etc.
Knowledge workers who won't engage with the material are just like ditch diggers who won't touch a shovel. They're dead weight, and organizations that fail to cull them are doing it all wrong.
Sadly, that's most of them these days.
Higher-level decision-making, I find, isn't so much like that. Sometimes it's just tradeoffs: "if the company's going this direction, then A is better; but if that, then B". But they haven't even recognized the this and the that - and don't want to think them through transparently - so I've got to choose the A or the B in the dark. Actually, it's worse than that, because some people have (by implication) already committed to the this, and others to the that, but neither side wants to talk about either, because that would create conflict. So, the best (job- / career-wise) choice for me is to predict which of A or B best satisfies whichever side will be most influential when the bill for A or B comes due. Either could be (technically speaking) correct, but the choice is never made on a technical basis.