Too Many Spaces in the Line
Wellwisher said:
A wild card variable in this equation is connected to subjective verses objective harm.
One factor your outlook appears to accidentally omit is the question of one's objectivity being another's subjectivity.
Take your footrace example. Subjective harm, indeed. Unless, of course, Person B was secretly handicapped. You know, like a racehorse.
And then everyone who threw the competition that way is guilty of objective harm.
But in the modern world there is some dispute about the weight of fact versus opinion. One accused of objective harm simply declares it subjective, and now we're down to anyone standing for fairness and justice being questioned as a "poor sport".
This is the problem of attempting to identify moral principles within a system of such dimensions and attributes as to deliberately stifle both morality and principles, specifically and in general.
Take the controversial subject of rape, for instance. If it's ever your turn to lie in the operating theatre while doctors use sharp blades, needles, sutures, and glue to address severe damage to your urogenital and excretory organs, there are plenty in the world who simply would not question the facts of what happened. But those who would tell you that you have no right to complain about your own "buyer's remorse"?
How much credibility should we grant such attempts to transform such an objective harm done unto a person into something subjective?
This gap in your line is big enough that I could sail an armada of the world's rapists through undetected. Or murderers. Or thieves. Politicians, lawyers, corporate executives, clergy ... anyone who needs a subjective definition to wash away their evil has that opportunity within the outlook you've described. This is functionally problematic to the point of invalidating your entire exploration of the proposition regarding objective and subjective harm.
How do you close that gap?