Genesis 24

ebekah's good deed of watering Abraham's servant's camels and offering him water has unexpectedly good results for Rebekah, as she is inducted into the line of the Messiah, and into the service of the true God of the Universe. The Bible places a high premium on kindness to foreigners and to guests, as reflected in the nomadic culture that Judaism arose from.

Civilization requires cooperation and sacrifice, charity towards others through doing more than one's "fair share" whatever that means. Fairness by modern definitions is fundamentally incoherent, and ironically the only way to achieve fairness, or what could also be termed beauty, or even Justice, one must accept the unfairness of whatever situation in which one is placed and do what is necessary to improve it.