I am not sure why the LPGA players aren't known as FJ Loyalists or Brand Ambassadors like the PGA players are. Not many of the women have FJ on their hats and I haven't seen any on collars. Brands pay for placement, and I'm guessing that the insurance companies and financial firms and Rolex pay slightly better!
Keep in mind that the only FJ products for women are shoes and outerwear/rain gear. The basic polo FJ offers for women is probably not at the top of their lists, however.
I talked with Chris and Devin about this at the first FJAI and at the PGA Show. Bottom line is that there are many companies that do women's golf apparel well, and it's not a wise investment for FJ to enter that market.