Maybe there is a gender difference. Think about the stereotype of the successful professional woman as a bitch. Also think about the requirements to compartmentalize thinking in professional settings. The rules tend to be male-dominated. This masculine culture tends more towards the same traits associated with being a T. It is just as true in real life as it is on these boards that Thinking is correlated with intelligence and Feeling, well, not so much. The professional world holds this same stereotype although it is more articulated in terms of masculine vs. feminine rather than MBTI categories. The principles are nearly identical.