>>712793131Because we need borg women performing other roles besides purely military purposes.
That, and Mustang has the philosophy that we need overall entertainment to keep morale up to keep going.
As stupid as it sound, we need cute women around to not think about the fact that we are living in our own prison of smokes and mirrors because otherwise we will slowly get bored, mentally ill and insane.
We need a sense of normalcy and enough comfort, and some degree of control over the domestic affairs.
This is why we have cute merchant women, to manipulate economic part of the arks market.
This is why we have maids and bunnys, because people think it's fun to have them around and makes them happy.
This is why we have ganger women and CIA operative looking gals, to fullfill the role of a police force in the more chaotic areas of the outer rim and inside the ark where a formal police or military force wouldn't properly work.
Some of those borg women are pretty effective in domestic affairs, are quite skilled, live longer and can support a bit more stress than a human. Thus we need borg women for some domestic affairs.
Now, if you ask us why the fuck do we need said strippers with insane luck or some other borg women with a weird skill that works like if it was voodoo magic, we have no idea. Go ask Mustang, but most likely his response will be "because its funny" or eEEEEEEEEEEntertainment.