The whole dom/sub subculture is not something I could feel a part of. To me, dominance has it's place alongside equality, love and respect.
In the bedroom, some people like to be dominant and others like to be submissive.
My idea of what dominance is though, is based around natural characteristics...leadership, strength etc. Not things that can be taught or scripted without it descending into play acting.
However, that's just my opinion...