If you mean to be fair as in to be just (as in possessing justice). Think of what the world would be like if there was no equality. If things were always unfair. I believe there are many things that are unfair about the world, However if no one strived to "fix" the unfairness, what would the world be like? Would society survive? Without the concept of fairness would there be laws? Would people follow any kind of rules? What would happen to the children, old people, the sick, the weak? Remember it is not just a physical body that makes a person great, look at Stephen Hawking, one of the greatest minds of our time, confined to a wheelchair. immobile. If people where unfair with him as a child, he would have died, he would not have been able to feed himself, or care for himself. The world would never have gained the valuable contributions he has made to the field of physics. Furthermore striving for a fair society means everyone wins, everyone has a chance to contribute and share their gifts with the community, we all have strengths and weaknesses, fairness ensures that every persons strengths are shared while their weaknesses are compensated for by others within the group.