You are a much more forceful advocate against gender bias and wage inequality if you actually hire women. If you are a white man who advocates for change, then hire someone other than a white man as an example of that change.
Often, when we support the 'right' causes and candidates, we fail to recognize that with progress comes sacrifice. That sacrifice might mean that you are no longer the obvious choice for the job. Your job security may no longer be a given.
I'm incredibly tenacious, but I also try so hard in my work to really listen to people and address their point of view. In the end, I always remember who I'm an advocate for.
