i have actually had this exact conversation with some women before from my church. (Although they didn't realize BDSM was part of the actual topic.)
In my mind i don't see it as a matter of one having more freedom or respect for women...
i see the D/s as fitting naturally with what script is already stating and believe that if more men would be the "head of their households" as the script says then the women could/would be more submissive naturally as well.
When a man fulfills his biblical duties, as is clearly outlined in the Bible, then it is easier for woman (at least for me) to fulfill her biblical duties. The reason women fight against the concept is because a majority of men want to be the head in name but not in action, words or deeds. Which leaves the woman feeling as though she has to pick up the slack, which in turn creates a muddled mess...
MHO...