There are many reasons why female officers work in the male estate.
As shown on these boards, quite often men have, what could euphemistically be called an "unhelpful attitude" towards women. This can be for many reasons. It does them good to be given orders by women, women who are not scared of them, woman who will not take their shit. It also builds trust in women, which is why sometimes they have offended against women in the first place.
There will always be officers, of either sex, who will be manipulated, but it is important that the positives of employing women in the male estate are not overshadowed by a few bad apples.