I have come to the conclusion that most, but not all Dommes that seek tribute might possibly be classifed as "whores".  If that is their full time profession then they are trading activities and sex for the weak ones that will pay them.  Probably do not have the mental capacity to earn a normal living.  Although some are jaded and some are not, I cannot imagine some being desperate enough to pay for release unless they are unable to progress in their social life or real world due to their insecurity.  Of course this is just my opinion and does not mean anything to anyone but me.