Those aren't problems with intelligence, they're "problems" (insofar as they are problems, debatable) with things like social anxiety, inability or unwillingness to read social cues, superiority complexes (or inferiority complexes) etc. None of these are intrinsic to having an enormous capacity to learn, as multitudes of smart and charismatic people will attest. Part of this is also a matter of self-perception. Hey, lots of not very smart people also like to talk about their topics of interest beyond the appropriate span of patience. Plenty of them worry about that tendency as much as those burdened with Promethean intellect as well; plenty of them don't.