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Sounds like a tangent but isn't: my Old Man resisted wearing specs because he had noticed that once people started wearing glasses their sight deteriorated further. I pointed out that it was likely that would have happened anyway as the need for specs probably indicated a problem in the first place, one followed the other. In that track, entrepreneurs, successful businesspeople, driven people, hard workers, will probably become more successful and probably therefore more wealthy as a result of those qualities. That isn't a given but is a probability. It is a natural progression. The old saw about the rich getting richer and the poor getting poorer, while it still indicates a basic "fairness" anecdote, does not hold water overall, for the reasons I have given.
Fairness is not static and means different things at different times, for different people. Equality of opportunity is a fab aspiration, and probably easier to measure and understand than a nebulous "fairness".