I do not believe submissive means subordinate nor do I believe they are the same. Through out my childhood I was forced to be submissive (children should be seen and not heard)to my mother and twin brother. In my military career I was subordinate, acting on/out the orders of my C.O. or anyone in a higher pay grade. So in that respect you would thing that in my relationship I would be the submissive/subordinate. Nurtured to be passive and submit to the will of others. It's directly the opposite. I am the Dom and she is the slave/submissive. Nature vs Nurture, I believe, has nothing to do with a BDSM relationship.