It's not September yet, and this basically means that we are still able to discuss about sports without being totally focussed on the game that drags most money (yup, that's association football, you can have a look at it here, and add up the four foremost leagues).
Quick recap: we are going to use the same boring index of inequality we have already used in the past (see e.g. here).
Now, for a change, this will be applied to the total number of medals collected by each country at the Summer olympics across the editions. We will start from 1960 (this is for soul-related reasons...), and consider all the participating countries.
If we combine these figures with the fact that the number of countries who participated reached its maximum with Rio 2016 (207), and that the share of the "De Coubertin-ian" countries (i.e. those that do not capture any medal at the Olympics) is at its lowest level since 1980 (less than 58%, in Moscow it was 55%, when, however, the number of participating countries was heavily impacted by boycott), we could speculate that if you participate to the games, it won't be a mirage to get rewarded soon.