I come at this from a slightly different perspective. I've been involved -- one way or another -- with the industry for about two and a half decades. In that time I've written comics, edited comics, run a comic books store, and generally filled my life with fellow comic book professionals.
In particular, I know a lot of store owners. And they would love if the industry would take these issues more seriously, because they're watching the industry bleed out because it can't bring new readers in, which is the worst problem the industry faces at this point. The industry can't sustain itself on aging comic book readers, and yet they've lost virtually all of the youth audience.
One of the places store owners have been finding new customers is with young girls and women. Older women tend to be fans of the non-superhero stuff, in part because of the generally awful portrayal of women in superhero comics. Instead they read Walking Dead, Sandman, and a host of other indie comics that have managed to create interesting characters whose tits aren't on display 24/7. For young girls, they've had considerable success with lines like the reboot of Strawberry Shortcake.
But the very presence of posters covered in half-naked women makes many women uncomfortable going into comic books stores. Watching dozens of guys stand around ogling the latest issue of Power Girl doesn't help either. Because they love comics as a medium, and want to see it continue, they know that they can't survive off of just the aging demographic of men who read comics. They need a wider audience, or the industry is toast. Getting that wider audience means acknowledging that current super hero comics aren't particularly desired by the female demographic, and that part of that reason is the poor, often sexist, portrayals of female heroes.
So there's considerable pressure, not just from social groups, but from the retailers themselves, and from industry aware folks like myself, to do a better job of portraying women. You don't have to care, but it's not being done to destroy the boy's club, it's being done in the hope that we can save the industry.