"The Targaryens wed brothers and sisters for three hundred years to keep bloodlines pure. Jaime and I are more than brother and sister: we shared a womb, came into this world together, we belong together."
―Cersei Lannister to Ned Stark
In the game of thrones
incestuous narcissistic family is very popular in ancient culture it's a way to keep the noble blood in one family.
The main objective of the writers of the old bibles is to proof the purity of blood of specific families through the demonstration of the incestuous relationship in his tales.
The first tale of Adam and Eve, eve comes from Adam himself , you can notice the narcissistic message from writer of the tale.
Second Cain and his sister, where Cain married his sister and this is the start of narcissistic incestuous.
Now we came to the heart of holy lineage of Abraham’s family "the Targaryens" which the writer tried to demonstrate a pure blood family from Noah to David.
First the writer start with Noah family as a selected family and killed everybody else, and to make this he used a popular myth in that time that describe a great flood. And filled the gap with people of hundreds years age until Thare ...
26 After Terah had lived 70 years, he became the father of Abram, Nahor and Haran.
27 This is the account of Terah’s family line.
Terah became the father of Abram, Nahor and Haran. And Haran became the father of Lot. 28 While his father Terah was still alive, Haran died in Ur of the Chaldeans, in the land of his birth. 29 Abram and Nahor both married. The name of Abram’s wife was Sarai, and the name of Nahor’s wife was Milkah; she was the daughter of Haran, the father of both Milkah and Iskah.
Nachor (Abraham’s brother) married Milkah (his niece). And Abraham himself married his sister.
11 Abraham replied, “I said to myself, ‘There is surely no fear of God in this place, and they will kill me because of my wife.’ 12 Besides, she really is my sister, the daughter of my father though not of my mother; and she became my wife"
The tale of lot can not be ended without showing the purity of family.
He kill the son in law give Lot's daughters the pure blood from the father.
"So the two daughters of Lot were with child by their father. [Genesis 19:36]
And in the story of Moses can not pass without giving the purity to Moses.
"The sons of Merari: Moholi and Musi. These are the kindreds of Levi by their families. 20 And Amram took to wife Jochabed his aunt by the father’s side: and she bore him Aaron and Moses. And the years of Amram’s life were a hundred and thirty-seven. [Exodus 6:19-20]
So till the tale of Amnon and Thamar
The son and daughter of David the tales keep repeating the incestuous in the family to confirm the pure blood of the holy family.
Then the Christian extend the family to Zechariah, John and Jesus.
So why imaginary family have such influence in human history. What the exception of alcoholic Lot and Noah that make them attractive to people?
It have connection with Narcissistic personality disorder .
"Narcissistic personality disorder (NPD) is a personality disorder in which a person is excessively preoccupied with personal adequacy, power, prestige and vanity, mentally unable to see the destructive damage they are causing to themselves and to others in the process.
It is estimated that this condition affects one percent of the population
Some people diagnosed with a narcissistic personality disorder are characterized by exaggerated feelings of self-importance. They have a sense of entitlement and demonstrate grandiosity in their beliefs and behavior. They have a strong need for admiration, but lack feelings of empathy
Narcissistic personality disorder is characterized by an over-inflated sense of self-importance, as well as dramatic, emotional behavior that is in the same category as antisocial and borderline personality disorders."
When there is sadism there will be masochism, which know as Self-defeating personality disorder, people who believe these tales suffer from masochism.