Why hasn’t the woman got the new job，according to the man?

W: We've got a new manager in our department.
M: Oh? You hoped to get that job, didn't you?
W: Yes, I did.
M: I'm sorry. That's too bad. Who is it? Who got the job, I mean?
W: Someone called Drexler. Carl Drexler. He's been with the company only two years. I've been here longer. And I know more about the job, too!
M: Hmm. Why do you think they gave it to him and not to you?
W: Because I'm the wrong sex, of course!
M: You mean you didn't get the job because you're a woman?
W: Yes, that probably was it! It isn't fair.
M : What sort of clothes does he wear?
W: A dark suit. White shirt. A tie. Why?
M: Perhaps that had something to do with it.
W: You mean you think I didn't get the job because I come to work in jeans and a sweater?
M: It's possible, isn't it?
W: Do you really think I should wear different clothes?
M: Well...perhaps you should think about it.
W: Why should I wear a skirt? Or a dress?
M: I'm not saying you should. I'm saying you should think about it.
That's all !
W: Why should I do that? I'm good at my job! That's the only important thing !
M : Hmm. Perhaps it should be the only important thing. But it isn't. Not in this company.