Ooooh I didn't think about the conflict with the other wire-stack-setting. The intermediate-product multiplier is soft and last, so wire-stack should come before it and override the latter. If the intermediate-product multiplier is set negative it becomes a "preferred" option which may be more intentional, but could cause weird stuff to get multiplied.
raw-material is a little dangerous, a lot of items that don't seem like it are under it.
I might need to look into the wire-stack setting, because it should follow normal priority rules (positive over soft, negative over positive and soft). The wire setting is also NOT a multiplier, so that definitely should not be multiplying, and 10 is way too low.