Neither ruleset I proposed involves cheating, and neither GP nor the article are about wealth inequality per se. GP said he doesn't take issue with inequality itself.
Agreed with your broader point. In practice no one's individual emotional response is relevant: runaway wealth inequality is bad because it yields bad outcomes for society.
Capitalism works to the extent that it does because money becomes a signal for what people want, which very obviously fails if overwhelming proportions of money controlled by very few people.
Effectively the problem is that wealth is an inherent feedback loop that naturally creates Pareto distributions instead of normal distributions. People don't have to be 'unfair' for this phenomenon to occur.