the only distinction i would make is that a submissive is one who basically is just that, while a subordinate is someone who takes orders and does them, much like your typical wage slaves in the workforce, the submissive is one who does his or her thing in her lifestyle while a subordinate might be in that position just during the work hours. although there might be a mix between the two in some peoples life, specially the tpe types. i am a dominant in my lifestyle, but while at work, i'm subordinate to the supervisor in what he tells me needs to be done so work can be productive. though while it is rare that i even (feel) submissive in life, extremely rare and they don't last long, i am still subordinate to the responsibilites of just everyday living.