Genealogy is one of the roots of power for leaders who use mythological religions for their benefit. Keeping it "all in the family" is one way to keep a grip on power. This leads to inbred royals and stuff like the Hapsburg chin. Also, people do be horny and putting their fetishes in everything.
To elaborate, genealogies can be forged to show how the leaders are direct descendants of the gods. Having your leader also be a demigod is a good way to hold on to power.
Genealogy is one of the roots of power for leaders who use mythological religions for their benefit. Keeping it "all in the family" is one way to keep a grip on power. This leads to inbred royals and stuff like the Hapsburg chin. Also, people do be horny and putting their fetishes in everything.
To elaborate, genealogies can be forged to show how the leaders are direct descendants of the gods. Having your leader also be a demigod is a good way to hold on to power.