I wouldn't be so sure it's an edge case. Would you want to work somewhere that nobody shared any interests? Maybe a language barrier? Perhaps a place where you

I wouldn't be so sure it's an edge case. Would you want to work somewhere that nobody shared any interests? Maybe a language barrier? Perhaps a place where you would be bullied? or be talked down to constantly? If you had to choose between a place like that, or a place that you would "fit in" better, which would you choose? It stands to reason that the "best" candidates are going to have a choice in where they work. Hell, even "slightly above average" candidates can often have a choice between multiple offers. So when you are looking for talented individuals, you are going to either need to pay more, offer some other benefits, or will need to ensure your workplace doesn't make them feel unwelcome. Personally I think of diversifying your employees like buying a pingpong table for the break room, or paying for lunch a day or 2 a week. It's a small price to pay, that can pay off big time when hiring. And that seems like a big enough "reason" for me to want to do it.