The logic makes perfect sense, the ones with "will" but no skill to support them will try to go for deranged tactics, make stupid moves, act for honor and fail because they don't have the intelligence or power needed to make their vision come true, they are a liability and very unstable.
Would normally be with the no will and no skill common soldiers, but in a position of power they would abuse it to get some achivement impossible to them or saboutage someone else superior to them.
Anyone here that read some manga knows the character, they are often the reason a MC plan fails when they are on the same side, the truly incompetent ones.