Employing the smallest number of people seems to be the go-to strategy for start-up toughs. But the cost of having to appropriate symbolic resources to generate profit, status and social ties in an exclusive world of businessmen is also high.
Acknowledge that avoiding the cultural incompatibilities of femininity in elite mens social spaces creates more problems that it solves. Given that the 15th floor bathroom of the NYC courthouse costs more than bottle service for price of entry, at the time of this writing -- we assume the costs of screwing free labor is high.
*Therefore, recruit participants through roles that are explicit because the costs of having people around that you cannot manage with money is a personal as well as a political liability.*
Another way to put this is that the money you spend paying women to establish boundaries relative to your organization, today, will spare you the legal fees their free labor introduces, on Friday night, five years from now (or when you are running a political campaign), tomorrow.