I'm not sure, but I suspect it might be both more and less of a problem than it is in our world? More, because of the more openly violent culture, since there's a much higher chance of someone just straight-up shooting you with a death ray if they don't like you. Less, because, well... the apparently pretty instinctive reaction of Sparks to getting pushed down like that is to build a death ray. And then shoot your naysayers, take a few hostages, read out your list of demands, and in general Show Them Show Them All. And that's assuming the Spark in question doesn't get creative. This is a world where Rosalind Franklin could have plausibly reacted to Waston and Crick stealing her data by building a DNA Alteration Device and turning them into hamsters. So, y'know, sexism is definitely still a factor, but every time some bigoted old college dean wants to turn down a female Spark's attempt to get tenure, he has to weigh his prejudice against the risk of experiencing femininity first-hand when she comes back with her new and improved Genderizer Ray or whatever.