For people whose preference is intuition, the action skills will not be determined by whether the perception is inward or outward. That is too "concrete", where they are abstract. So rather, it will be the judging function the perception is paired with that determines their action. Abstract Thinking will be more pragmatic and structure focused (the Choleric's aggressiveness and task focus), and abstract Feeling will be more cooperative and motive focused (the Phlegmatic's being a catalyst moving others to action, and people-focused).
So this is why the symmetry is broken across S/N. Even though the cognitive processes may look like the best thing types can have in common, the temperaments, keep in mind, have the same core needs
, and for those with a concrete preference, they are tied to the Sensing attitude, and for those with an abstract preference, it is just the presence of the same two functions, regardless of the attitude, that meet the need.
Membership/belonging (in a structure) responsibility and duty: Si
Freedom to act, make an impact: Se
Mastery and Control/Knowledge and Competence: Ne+Ti
Meaning & significance/Unique identity: Ne+Fi