Lawyers have about the same gender breakdown as computer systems analysts, so I don't think this is the case. CEOs are even more predominantly male, at a fairly shocking 73% by 2016 numbers (we'll have '17 soon).
The problem with tech in particular is that we're often viewed as an inclusive and progressive industry. But when you run the numbers, we're no better than the law firms.
That seems unlikely, considering that you see similar issues in high-status work, such as business executives or politicians.