To understand what really motivates people, it's much better to look at what they do in the real world. Sure, there have always been women getting CS degrees, but how many of them go out and become programmers or tinker with technology, electronics and hardware late at night because they want to? The people who do that have been the engines behind technological advancement and growth throughout human history. And they've been mostly males. Saying that men tend to be more interested in technology than women doesn't mean that women's interest in CS is purely fixed. It just means that there will always be statistically more males tinkering with technology than females. And those statistical disparities will always ensure that the majority of tech-heavy, companies, and inventions will be led by men.