but firms live and die based on how profitable they are. if employing all women teams to do the hard work would cost less, firms who did so would thrive at the expense of the sexist ones who value penises. the lack of such firms suggests a conspiracy on a society scale, where not only will women be penalised within companies by getting paid less, but companies that employ all women and therefore cost much less to run would have to be shunned by every customer out there to make sure they don't succeed and take over the business of the more expensive ones!