The discrepancy you're pointing out across different countries is at most 18x, according to your article.

Let's ignore, for a second, that "richness" needs to be considered in the context of COL. Yes, 1% of someone salary could make an impact in Tajikistan. But the cost of a meal for that potential donor could also bankrupt someone in Tajikistan. But let's ignore that for now.

18x an average persons salary is a fart in the wind when it comes to the rich. Take a look.