I think the imbalance you speak of also has to do with interest. Men are more drawn to technology and technological advancements because by nature men will tend to be interested in such things.
Women may be more drawn to the aesthetics that result from technology. This is not to say that there aren't women out there who are not interested in the underlying technology of things, you'll definitely find them.
But I think before we conclude that there is an imbalance because of intentional inequality maybe we should look at why there are more men than women in a particular industry and vice versa, and perhaps we will find that the reasons for this are not so controversial.