Well to be clear, in Mario Kart the leaders in a race get the worst weapons (usually bananas or green shells); those in the middle get mid-grade weapons; those in back get blue shells and huge speed boosts. It's all designed to keep things as close as possible without one's ability to race wholly determining the outcome.
This is a ridiculously complex topic, because strict free market will tend to favor those happy to abuse the rights of others for their own financial gain; so we put some laws in place just to stop the abuse of rights, and it creates new wrinkles; so then new laws to address those, and so on. Until the point that the legal system gets incredibly complex so that lawyers become hot commodities and therefore extremely expensive; and suddenly justice becomes too expensive for some; etc.
I don't mean this as a whole picture, but to suggest that even putting together the brightest minds truly looking out for the good of the whole would have deep arguments on how to accomplish the desired outcome.
I agree that it's unideal to purposely craft laws that favor one group over another -- the spirit of your article here. This type of agenda is racist, sexist, and divisive while usually promoted by those who accuse the same on others. I also don't think there's any sort of simple fix and that the only ultimate fix is for humans to collectively become better.
RE: Capitalism: A Game of Mario Kart