Why does that make sense to you?
For the other stuff you said... There's this fella at work, who is neither a 3w4 or ENTJ... Which perhaps is the point, perhaps not. Anyway, he has this way he wants others to treat him, or at the least view him. Nothing wrong with that... But as a person he lacks substance. He doesn't in and of himself in any real way do or accomplish things great enough to warrant the reactions he wishes to receive. So he makes things up, or makes things part of his identity that are not really him. He tries way too hard to come across as smart, or cool. Anyone with any sense at all can see it is all a show... Definately not "genuine". Or is it?
Whether you agree with or like what he's doing he's trying to fill a need. He's not enough "person" to get the attention he wants and he hasn't accepted that within him self. Barring that he's not willing to put in the effort or time required to actually achieve the things that will give him the attention he craves. Whatever his flaws he has a real need that he can't fulfill "honestly". Alien though this may seem to some... It's 100% who he is. What you see is the real him: someone who would lie in an effort to feel whole. Much like a person who eats to fill a void. That is the real person. All 300lbs of them.