Nope, you are very wrong on this.
have you ever meet a INFJ, the Fe subtype? Those are naturaly charming in social settings. They have beautiful, melancholic and dreamy eyes, are skilled in manipulating and stir up the emotions of people, and in making themselfs likeable and charming.
They are very optimistic, and almost never bored, and so of course they are a pleasant company. Also they have a natural inclination for humor and stuffs like that, without even trying.
Take for example a ENFJ, who have that all artistic and "prince-like" quality to them, because of their charm and social grace.
Now imagine that charm multiplied like 20 times, and yo get a INFJ the Fe subtype. The Fe subtype of INFJ can have even a more impressive and "prince-like" charisma then your typical ENFJ.
The only difference between them is that the ENFJ is more mature and usualy more smart in a practical way, and also more courageous and assertive.
I didn't meet a INFJ the Fe subtype until recently. I've just read about them in Socionics.
But recently at my work they've hired a guy from Lebanon, a INFJ the Fe subtype. I've got to say, he is quite something.