Monocultures, almost by definition, encourage groups to think alike. That means the group doesn't invent anything new, and has a strong tendency to work towards the lowest denominator. While that's sometimes valuable -- not everything needs to be revolutionary -- it does mean that true innovation is harder to achieve, because nobody is thinking outside the box. In fact, most of the team isn't even aware of the box.
Step back from the color- and gender-counting varieties of diversity for a moment, and just think of the notion of diversity itself: a variation of backgrounds and viewpoints, which can contribute to a wider view and, when done mindfully, more opportunities to serve the community (the same community that buys your products).
Surely you've had that wonderful feeling when a teammate comes up with an idea, and you respond, "Wow, what a great suggestion! I'd never have thought of that!" With attention to diversity (by which I mean, "attracting people of different viewpoints"), you encounter that sense of discovery far more often.
Step back from the color- and gender-counting varieties of diversity for a moment, and just think of the notion of diversity itself: a variation of backgrounds and viewpoints, which can contribute to a wider view and, when done mindfully, more opportunities to serve the community (the same community that buys your products).
Surely you've had that wonderful feeling when a teammate comes up with an idea, and you respond, "Wow, what a great suggestion! I'd never have thought of that!" With attention to diversity (by which I mean, "attracting people of different viewpoints"), you encounter that sense of discovery far more often.