This is a great utility for inspiration. I wonder at its utility beyond that. I'm primarily concerned about rigour. How much is story and how much is study? What details are missing that completely change the context?

For example, a case study of Bill Gates takes on a different light when the story includes how his father was a licensed attorney, that they worked together and appeared to have a close relationship. Surely that's an important detail. Secure family attachments, let alone the resources of knowledge and money, must factor in to the success of individuals.