There are many roles that women are actually preferred.
Such as...
Frontline positions...receptionists, customer service,
etc...
Public relations...sales and marketing...
Administrative and sectretarial positions....
If you observe carefully, you will notice that.
As to leadership positions, it is true that the proportions is
not equal, but it needs further investigation as to why that is the
case.
One possibility is that they have to spend some years and
attention away from career, into child rearing. To achieve a
leadership position, many years need to be spent accumulating
experience and climbing up hierarchy, something that men can do
without family interruption. That can be one reason why there is an
imbalance at the top, late-career positions.