Selflessness is idealism. Selfishness is realism. You haven’t justified why you should be loyal to the ruling part or elite class, nor why they should be loyal to you.
If it’s all based on kinship and blood relations then, presumably, you are also a racist since those of your own race are closer to you than those of a different race?
You have missed the point of this thread. If the US president is elected, then at what point must the president put society before him/herself and before his/her own family? Ever? Or never?
Furthermore, at what point does any human put another before him/herself, except family and kinship?
Historically, European monarchs would marry their daughters off to a neighboring kingdom to ensure loyalty and cooperation. Kin was used as bargaining chips of power. Isn’t this what you are implying should be the case? Yes, it is.