Nietzsche, in Beyond Good and Evil states: life itself is ESSENTIALLY appropriation, injury, conquest of the strange and weak, suppression, severity, obtrusion of peculiar forms, incorporation, and at the least, putting it mildest, exploitation. Later in the paragraph he names the winners and losers by calling them MASTER-MORALITY and SLAVE-MOR AL ITY” and continues to define Master morality in conjunction with his notion of life as appropriation, injury, conquest of the strange and weak, suppression, severity, obtrusion of peculiar forms, incorporation, and at the least, putting it mildest, exploitation. Or, to paraphrase: We, the Strong Ones. 
But is this true? We mustn’t forget David Hume’s dictum regarding confusing an is with an ought. In other words, just because something is a certain way doesn’t mean it ought to be. Let me rephrase this: Society grants power to those who have grabbed it. The power is legitimized. It is a fact; it is. That doesn’t mean though that it ought to be that way.
John Stuart Mill, in his essay “The Subjection of Women”, states it like this:
“Laws and systems of polity always begin by recognising the relations they find already existing between individuals. They convert what was a mere physical fact into a legal right, give it the sanction of society, and principally aim at the substitution of public and organized means of asserting and protecting these rights, instead of the irregular and lawless conflict of physical strength. Those who had already been compelled to obedience became in this manner legally bound to it. Slavery, from being a mere affair of force between the master and the slave, became regularized and a matter of compact among the masters, who, binding themselves to one another for common protection, guaranteed by their collective strength the private possessions of each, including his slaves. 
Is it natural then for the strong to dominate? Or, to phrase it differently, is domination natural?
Let us leave aside the popular press’ insistence on testosterone, which of course is ill-informed. Many scientific studies have shown that testosterone increases after a win instead of being the cause of the win. People have their cart before the horse. Yet one more sign of a failing logic test by society. 
Instead, I will stop here and wonder about the role of habit in all of this. What causes one to be dominate? Like many things, it is over-determined, but surely both one’s membership to a group that has already climbed up the dungheap of domination is part of it. You know what I mean here – if you’re rich, of the right national group in the world or the right religious group in your country, and probably if you’re male, you have a much better chance of asserting domination than your opposite does. It has nothing to do with personality or with character or even with hormones. J.S. Mill is right: the collective strength wields much weight. If you, by the the luck of the draw, find yourself in that group, then you are golden. It catapults its members up over the objections of others.
Habit then rules. The habits of society and the habits and assumptions one grows up with, as well as the training one exerts over oneself. William James, in his essay on habit stated it thus: 
“Can  we  now  form  a  notion  of  what  the inward  physical  changes  may  be  like,  in organs  whose  habits  have  thus  struck  into new  paths? In  other  words,  can  we  say  just what  mechanical  facts  the  expression  'change of  habit '  covers  when  it  is  applied  to  a  nervous system?
…the whole plasticity of the brain…be a path in the system.”
…the  whole  plasticity  of  the  brain  sums itself  up  in  two  words  when  we  call  it  an organ  in  which  currents  pouring  in  from  the sense-organs  make  with  extreme  facility paths  which  do  not  easily  disappear.  For, of  course,  a  simple  habit,  like  every  other nervous  event — the  habit  of  snuffling,  for example,  or  of  putting  one's  hands  into  one's pockets,  or  of  biting  one's  nails — is,  mechanically, nothing  but  a  reflex  discharge;  and its  anatomical  substratum  must  be  a  path in  the  system.”
As he also points out in this essay, it is much easier to change one’s habits when one is young. It is never impossible to change one’s habits, but it is extraordinarily hard. I think this is true whether or not the habits are rewarding one with domination or with submission. It is hard to step outside one’s habitual step-by-step maneuvers in life and assess the justice of them.
The former ISIS recruiter finished our conversation by telling me this: she had talked to many therapists over the last few years in prison and had come to face the truth that violence was truly not the answer. She had tears in her eyes when she told me this – her decision to turn away from violence. My heart went out to her; I hoped that new habit would stick.