A study finding that women cause less corruption isn't quite sufficient evidence that governments across the globe need more women, just as a study finding that men are better for a nation's economy is not sufficient evidence that governments need more men. When the sex ratio of government bodies or voters changes significantly, a lot of variables are affected, some which significantly benefit some political parties/viewpoints over others. I think it'd be best to stick with the paper's conclusion itself instead of overdrawing it.