- lower wages because of higher competition (the employer's incentive)
- more "attractive" workplace wink wink (the employee's perspective)
I know it's not politically correct to say that, but don't shoot the messenger.
I don't think men feel the need for more "female perspectives" in programming. Especially as they wouldn't even know what those would suppose to be.
Women (feminists) push for more women in tech because they have seen some people become rich via tech jobs and feel left out. They don't push for more garbage women and so on.