Chiefly them that walk after the flesh… and despise government. Presumptuous are they, self-willed. (2 Peter 2:10)
Throughout history, the philosophers have pretty well agreed on the conclusion that selfish personal interest is the motive behind all human conduct.
The philosopher Epictetus illustrated his understanding with the fact that two dogs may romp on the lawn with every appearance of friendship until someone tosses a piece of raw meat between them. Instantly, their play turns into savage fight as each struggles to get the meat for himself. Let us not condemn the old thinker for comparing the conduct of men to animals. The Bible frequently does and, humbling as it may be to us, we humans often look bad by comparison.
If we would be wise in the wisdom of God we must face up to the truth that men and women are not basically good: they are basically evil and the essence of sin lies in their selfishness! Putting our own interests before the glory of God is sin in its Godward aspects, and the putting of our own interests before those of our fellow man is sin as it relates to society. By the Cross, Jesus Christ demonstrated pure, selfless love in its fullest perfection. When He died, He set a crown of beauty upon a God-centered and an others-centered life!