Final answer:
The term that reflects humans' supreme self-love over their love for God or others is 'selfishness' or 'self-centrality'. Throughout history, religious and philosophical teachings have emphasized the importance of selfless love and the pursuit of the highest good.
Step-by-step explanation:
The term that denotes the tendency for humans to love themselves supremely and not love God or their fellow humans as they should is often described as selfishness or self-centrality. This concept has been discussed by various philosophical and religious traditions over time. For instance, Christianity teaches the importance of loving others as oneself, a principle found in 'The Sermon on the Mount' mentioned in Matthew Chapter 5. Nietzsche's ethical principle of the will to power emphasizes the egoistic nature of humanity, proposing that humans inherently seek to impose their will and serve their own interests, disguising self-advancing motives as altruistic actions. In contrast, Janism and various philosophical approaches, including those of Thomas Aquinas and Baruch Spinoza, encourage a selfless love towards others and aligning with the highest attainable good or becoming a perfect image of God as the epitome of human flourishing.