I think the point that others have been trying to make is that gaining the evidence isn't merely of lower importance to the agent than some other pursuits, it's that gaining the evidence appears to be actually harmful to what the agent wants.

Yes I was proposed the alternative situation where the evidence is just considered as lower value as an alternative that produces the same result.

I don't see how the situation is meaningfully different from no cost. "I couldn't be bothered to get it done" is hardly an acceptable excuse on the face of it

At zero cost(in the economic sense not in the monetary sense) you can not say it was a bother to get it done because a bother would be a cost.