As societies become wealthier and better off, people seem to turn their focus of attention outward, and as a result, all kinds of altruism towards strangers increases, from volunteering to charitable donations and even altruistic kidney donations.
Efterhånden som samfund  bliver rigere og bedre stillet begynder folk at kigge udad og som resultat begynder alle former for næstekærlighed mod fremmede at stige, lige fra frivilligt arbejde  til velgørenheds donationer og endda altruistiske nyredonationer.