Failure gets a bad rap. As much as it hurts in the aftermath, it's actually a perfectly normal part of life. What's more, it's immensely useful. It's why software and video game companies employ whole teams whose entire purpose is to make the thing break — so they know what needs to be fixed before the product ends up in customers' hands.
So, here's hoping people have been able to learn from these big business blunders, because wow, they were spectacularly bad.