It is surprising to the average man in the  street just how many men actually look for a 
dominatrix for hire. Why on earth would a man want to be chained up  and beaten with whips and canes for pleasure?
 
Yet it is a fact that many men do. Indeed,  one report suggested that more than 50% of men enjoy it. While some might  regard it as a perversion, the simple truth is that many men feel that in day  to day life they have to be the dominant person in everything and they need a  change from it. This may derive from the time that we all lived in caves. The  woman stayed in the cave and looked after the children while the man went out  hunting. The man took all the risks, and was therefore dominant. 
Men have also been physically bigger and  stronger than women – not always, but for the majority – and thus are dominant  on that score too. You can still see this sort of attitude on every street in  the summer: “big” men on very loud motorcycles, revving their engines for no  apparent reason other than to say “Look at me. I’m tough. I’m important. I’m a  MAN!” (As an aside, if you did that in a car you would get nicked before the  next set of traffic lights). 
So maybe it is the case that these “big”  men who feel the need to show off also feel the need to take a rest sometimes  and downplay themselves, and hence go looking for a dominatrix for hire. Just for once, they can be the submissive  partner and play the role that is traditionally that of the woman. (One should  note that today that has changed significantly, with many businesses having  women in the dominant role, but that has only taken place in the last 30 or 40  years).
Seeking a dominatrix for hire and becoming submissive for an hour or two may  just be the kind of thing that many men feel they need in order to be able to  relax – even though it involves pain and degradation.