"Relationships built upon self interest," i.e., upon lust is the hallmark of Marxism.

"For all that is in the world, the lust of the flesh, and the lust of the eyes, and the pride of life, is not of the Father, but is of the world." 1 John 2:16

If all that "Is" is "of the world" then all that "Is" is "lust of the flesh," "lust of the eyes," and "pride of life," i.e., self interest, i.e., there is no father's/Father's authority to be accountable to.