Microsoft Diversity push
One of the reasons for the push for diversity at Microsoft is the fear of the "everyone I know" syndrome that leads to poor decisions. It's the way decisions are justified with groupthink when those making decisions share the same background and experiences. In Microsoft's case the feeling is that leadership was insular and this leads to decisions that in hindsight seem blindingly obviously wrong. Like forcing Metro on non-touch interfaces.
IMHO I more diverse leadership would be helpful in the FOSS community if only to improve the interface and aesthetic decisions.