No. Because some lines of work simply don't interest a certain sex. It has been proven that women avoid certain careers, not because they can't do them well, but simply because they don't want the lifestyle. Men, on average, work more hours, take less sick days, take less time off, use less vacation time than women from studies I've seen. Much of it has to do with family, especially if there are kids involved. In this case maybe being a pilot isn't as desired for women because it will take them away from family more.

Other jobs, they just don't want to do. How many straight men do nails? How many women collect garbage? Both potentially pay well, just no desire to do it.