Greater income inequality was linked to countries having fewer medals.
Another examples or how hierarchies hurt everyone, including those on top who think that their privilege means hierarchies should not be challenged.
The people who wrote the article said that the argument that striving for
equality for women means that men will lose out is not substantiated in Olympic sports. “Rather, gender inequality is likely to hurt both women and men by encouraging
stereotypes that limit their ability to reach their full potential as
individuals,” they said.
http://www.telegraph.co.uk/women/womens-business/11215511/Olympic-medals-Countries-with-greater-gender-equality-win-more.html