"People from different backgrounds approach problems from different angles—that much should be blindingly obvious." It's not obvious and in my experience is nonsense when it comes to the workplace, it doesn't matter what color your skin is or where you grew up, if you're at company x it's because you fit through the same sieve and have the social awareness to shut up and conform. I have both observed and learned the hard way again and again that even a good solution to a long term problem will be ignored or treated with hostility.

You are more likely to be fired for your suggestion box submission than your idea implemented.