What this tells us is the opposite of what the article concludes. If women in more equal countries, with an absent "glass ceiling" that keeps them from attaining the top-paying positions, choose non-technical careers, that is because (they expect that) those careers pay better than technical careers.
This choice however, does not allow us to conclude a lack of interest in technical subjects. It merely suggests an interest in a better paid job.
Note that we also can't conclude that women in less equal countries are more interested in technical positions. However, this is not what I'm claiming. My point is that it's not safe to infer "interest in X" fom "works in X".
P.S. I see below you say you didn't read the article. It basically says what you say in your comment.
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[1] This comes from my personal experience, but I don't expect it to be controversial. In many companies I've worked, men and women, even if they started out as technical workers, jumped on to a managerial track as soon as they got the chance. In one particular multinational financial company I worked, this was so common that the company had very few technical employees and had to outsource most of its technical work to contractors- which should also not come as any news to anyone who's worked in the financial sector.