Not sure what you mean by "lack of an inviting industry", do these companies put up a sign saying "don't bother applying if you are a woman"?
I've actually read an article written by a woman who worked as a game developer and the studio she worked for was very uninviting. Harassment is an issue, not being listened to (even being talked over), having pin-ups on the walls... this was some time ago, and she wrote the article anonymously so there's no way to confirm it for sure, but given other things I've heard, it wouldn't surprise me in the least if every bit of it were true.
Then there is the point others brought up about how women are often discouraged, or at the least not encouraged, to join math or science careers. I was a science nerd as a kid and I am sad to say that due to not feeling there were enough career opportunities (and having a HORRIBLE professor in college who didn't give a rat's behind whether or not we learned anything, or, you know, bother to actually teach), I gave up on my decade-long dream of becoming a biologist. I also harbored a wish to be a game developer, but I wasn't ever the best at math, and programming requires oodles of it. (I was decent at math, but no genius in the field.)
The argument is often given that women should just make their own studio to make games, but not all women are the same--so even if there were such a studio, maybe it wouldn't appeal to most women. Not to mention it would be very difficult to get backing due to the study Allan mentioned.
Right so as per Allan's request, let's bring it back to the lady Inquisitor! 
Here's something I'm curious about. For women who will roll a lady Inquisitor, will you try to make her look as similar to you as possible, or the complete opposite? I think oddly when I was younger I was more keen on making my characters as different as can be... pink hair, tattoos, the works (I'm referring to DAO's Warden... that was a while back, now!). But now I'm more interesting in creating a character who resembles me more. I wonder if it's an age thing. Not sure!
And for the guys... When you play the opposite gender, do you try to make her look as attractive as you can, or like a female version of yourself, etc etc? 
Hmmmm.
My characters are a mix. Most of the women characters I make are themed after some idea. I want my warriors to generally look rugged. Except when I decide to go for an incongruously delicate appearance, the tough warrior woman with the face of a delicate porcelain doll, who may not be as sweet as she looks. I've begun to mix up the skin tones. I'm not a person of color but I enjoy making female characters who are, and then having them be generally awesome and accomplish great things. Every now and then I'll make a character who looks sort of like me, but that's mostly in the hair and eye color--and I can't avoid that hair and eye color forever, now, can I?
I don't often play men, but I think I could benefit if I did this with my male characters more--since I tend to try to make an attractive face for men. I still try to make my female characters pretty (probably because I'm shallow but not sure since I try to avoid playing my characters as myself), but also try to make them fit whatever notion I have in my head for how I'm going to play that character. It's just more fun that way for me.