No diversity = blind spots. How many startups aren't serving needs because they're simply not the needs of those founding the company? And how many are missing

No diversity = blind spots. How many startups aren't serving needs because they're simply not the needs of those founding the company? And how many are missing the bigger picture on the product because they don't have someone on staff who sees things differently? Taking a slightly roundabout example: AFAIK Pinterest was founded by men and the core team is the standard valley profile, however it has primarily a female userbase. In that case the user demographic doesn't match the initial team's demographic. However, one has to wonder whether Pinterest would have happened sooner if there were more women in the startup community, and whether there are other similar opportunities that address a huge need for a demographic not usually represented in the valley. Another example: pigeonly. A really cool company, an idea that springs forth from a different experience in the world.