This eternal debate :D there re pro's and con's to using both. The sience and the reason to care is the same reason you should be mindful about job descriptions point 60.
a) Please show me a gender-diverse sports team in any sport b) how many olympic teams have national diversity? c) there are people who experience families that don't love them from the bottom of their heart, will this analogy motivate them?
The ability to inspire a diverse crowd comes with the ability to wield the right language at the right time, but you will never know what language to use with your people if you've never taken the time to truly listen to who they are and what drives them.