Loyalty

Loyalty is faithfulness or a devotion to a person or cause. The tendency to consistent loyalty is a personality trait associated with a range of social behavior

Social and cultural
Loyalty evolved as devotion for one's family, gene-group and friends. Loyalty comes most naturally amongst small groups or tribes where the prospect of the whole casting out the individual seems like the ultimate, unthinkable rejection. Loyalty to tribes evolved from the evolutionary tactic that there is a greater chance of survival and procreation if animals form packs/tribes

In a feudal society, centered on personal bonds of mutual obligation, accounting for precise degrees of protection and fellowship can prove difficult. Loyalty in these circumstances can become a matter of extremes: alternative groups may exist, but lack of mobility will foster a personal sense of loyalty.

The rise of states (and later nation states) meant the harnessing of the "loyalty" concept to foster allegiance to the sovereign or established government of one’s country, also personal devotion and reverence to the sovereign and royal family.

Wars of religion and their interminglings with wars of states have seen loyalty used in religious senses too, involving faithful support of a chosen or traditional set of beliefs or of sports representatives. And in modern times marketing has postulated loyalties to abstract concepts such as the brand. Customer churn has become the opposite of loyalty, just as high treason once stood as the opposite of the same idea. Compare loyalty card.

Loyalty is also seen in business in a variety of ways. As governments have grown in size and scope, some people are more loyal to a company rather than to a country. As corporation complexity has grown, people have shifted their loyalties to individuals rather than companies. As those individuals move between companies, they often take other people with them. Stock options are one method devised to keep people loyal to a company.

Loyalty and ethics
Plato originally said that only a man who is just can be loyal, and that loyalty is a condition of genuine philosophy. The philosopher Josiah Royce said it was the supreme moral good, and that one's devotion to an object mattered more than the merits of the object itself.

Lao Tzu's take on loyalty: "When people lost sight of the way to live Came codes of love and honestly, Learning came, charity came, Hypocrisy took charge; When differences weakened family ties Came benevolent fathers and dutiful sons; And when lands were disrupted and misgoverned Came ministers commended as loyal." (From the Witter Bynner translation.)

There were many intents to replace loyalty with support of the ruling party, president, king or dictator.

Loyalty can be used as a tool of persuasion and brainwashing.

The quotation below allows to avoid the confusion:

"...all political power is inherent in the people, and all free governments are founded on their authority and instituted for their benefit; and that they have _at all times_ an undeniable and indefeasible right to _alter their form of government_ in such a manner as they may think expedient."

Under that gospel, the citizen who thinks he sees that the commonwealth's political clothes are worn out, and yet holds his peace and does not agitate for a new suit, is disloyal; he is a traitor."

-- by Mark Twain, A Connecticut Yankee in King Arthur's Court

Loyalty in the Bible
Jesus said, “No one can serve two masters. Either he will hate the one and love the other, or he will be devoted to the one and despise the other.” (Matthew 6:24 NIV) Attempting to serve two masters leads to “double-mindedness” (James 4:8), undermining loyalty to a cause.