What reasons are there for expecting life to be fair? Where would this hypothetical "fairness" come from?
You may argue that "fairness" is "unnatural". Then it is also "unnatural" e.g. that people physically stronger than you can't just kill you and take your wife and all your stuff. Would you rather we go back to a completely "natural" system like that? Complete all-out Mad Max-style anarchy? Of course not.
I meant to show that "perfectly fair" is an unobtainable non-sequitur. We need to know what we are up against when we attempt to balance out some of the indifferent harshness of the universe, at least in our little patch of space.
I do find it interesting that you thought my previous comment implied such things. I suppose it did sound a bit like certain shibboleths.