Looking back, what constitutes a loss? Something that you once possessed? If that is so, what happens to the losers of the field? In a purely capitalistic world a fight determines winners. There is no win-win situation, because win-win situations call for compromises to be made. And a compromise will reduce the pleasure or satisfaction of the winning party, and if too large a compromise is condoned no one gets any benefits, and it is a lose-lose situation anyway.
Losing has its benefits. Either for the winner or loser. For the smart and optimistic loser a defeat simply spurs him on to retrieve what he had lost. For the weak simpleton, a defeat is the end of the world, but it is also a bonus for the winner - to see his opponent fall on his knees, crushed and demoralised. It is an added satisfaction, to see the extent of the damage that he can exert.
A loss is only something that one has failed to gain.