I'd go so far as to say that people who are submissive or dominant through and through, in their outer and inner life, always seem to me to be unbalanced. (No criticism of anyone present intended.) Fortunately, most of us seem to have both sides to our nature. It's only confused vanillas who expect Doms to be CEOs and subs to be Stepford wives.
My late slave-wife was an aggressive legal exec who took no backtalk from anyone - except her Master. People who knew in a general way that we were into BDSM often assumed she was the Domme till she proudly showed off her latest bruises.