BDSM provides a framework for individuals to engage in a consensual power exchange. One person is usually the more submissive partner, while the other is more dominant. The key word here is "consent"; it is all about giving and taking power in an empowered way.
I believe that the following apply to both Dom and sub.
Thou shalt respect yourself
Thou shalt respect each other
Thou shalt respect others who know, and don’t know, who you are to each other