We can analyze the behavior of the antithesis of a Light Jedi who are above all moral objectivists in their use of the Force, with the Sith who are moral subjectivists in the way they employ the impartial energy field.
Among philosophers there is healthy debate over the nature of morality.
Light Jedi, who are both philosophers and peaceful warriors believe and staunchly walk the path of Ethical Objectivism. For Ethical Objectivists, moral claims are true or false as clear matters like rain falls to the earth, not from the earth to the sky, or when the sun sets the stars come out. Without necessarily claiming to know exactly why or how such pronouncements regarding human morality may be made, nevertheless, Light Jedi work within societies of free thinkers to ensure that their moral judgments when true, are true for all persons whether they believe or feel otherwise. In other words Light Jedi maintain that the truth or falsity of moral claims is independent of the Jedi making the claim. This is an act of fealty and love for the Force itself which surrounds and sustains all life in the universe. It is a reverence for this Force that allows even the human matter of one’s own casing to fall short as the ultimate arbiter of right and wrong—it is rather the Force working in concert with the Jedi’s open heart that allows a Light Jedi to initiate concrete (and often controversial) moral claims. On an energy level this is exemplified as the transparent window metaphor when describing Master Obi-Wan’s use of the Force; he moves in concert with it, the Light focused through him illuminating his matter and cutting an arc outward around him penetrating the Darkness with total humility and reverence for the life Force and feeling its flow unselfishly and with great compassion. It is the Light passing through the perfect amplifying lens.
The enemy of the Light Jedi, the Sith Lords, are textbook Ethical Subjectivists. For Palpatine and his Apprentices, the truth and falsity of moral claims depends not on some (they would say alleged) objective truth of the matter of a Force user’s behavior, but rather on the feelings, beliefs, or attitudes of the individual Jedi passing the judgment. Sith deny that there is any absolute truth to moral matters and view morality as radically relative to each individual. We can understand a bit better the way a Sith views the world by observing the nature of physical reality. Looking at a freshly cut lawn one may conclude that green is their favorite color. A Sith would comment that there is no green at all, rather that the electromagnetic radiation reflecting off the blades of grass are interpreted by our brains, and we define the color of grass as a byproduct of the inner workings of the eye and human brain. This scientific reality applied along the trajectories of the moral battlefield leads the Sith into exotic territory in their rationalizations for the things they do. Unencumbered by both having to account for moral disagreements (I made the color green) it also nullifies the Force user’s conscience to accurately condemn certain behaviors. All roads lead to the Rome of one’s own self. It is the application that morality is based on opinion and everyone’s opinion counts equally. This idea is often used as a false reasoning to justify horrible acts and manipulate those caught under the powerful spiritual and psychological sway of the Sith Lord.
Eventually such power is held to be counter-intuitive as the moral universe of the Sith is eventually revealed to be the sham it is—a world where Pol Pot and Gandhi stand on equal moral ground and that any behavior is justifiable as long as the agent believed it was so at the time. Where Light Jedi court the timelessness of the universal flow of the Force, the Sith are quick to obviate their acts in accordance to whim. It is power for the pure sake of exercising more power. On an energy level, the Sith absorb all the Force in a surrounding arc commensurate with their level of training; like human black holes they absorb all the energy out of their universe and use it without restraint or compassion. The Sith is the opposite of the window or clear space, the Sith is the black hole.