I agree with your first paragraph, but I don't quite understand your second.

In particular, I don't understand what you mean by there being no need to say he "believes". If upon being asked he would assert that his IQ is 100, and he wouldn't be consciously aware of lying, isn't that enough to say he believes his IQ is 100 on at least one level?

(also, when I say I agree with your first paragraph, I do so on the assumption that we mean the same thing by status. In particular, I would describe the "status" in this case as closer to "self-esteem" than "real position in a social hierarchy". Are most Less Wrong readers already aware of the theory that self-esteem is the way the calculation of status feels from the inside, or is that worth another post?)