How many of these people made their fortune in a tech-related field? What does that imply for your future, in terms of the changing economy, your future job choices, training, etc.? Should this influence your decisions in terms of a career path down the road? Or the classes you choose to take in college?
How did the rest of the billionaires make their money?
What industries were making the most money 100 years ago? 50 years ago? How do you think things changed since then?