It’s interesting that only the top two of the world’s richest people are household names.
I’d never even heard of the other 3 dudes. From CNN Money

“Hey Slim, can I borrow your truck? Oh, and 157 million dollars for gas?

1 William Gates III United States Washington 50.0 Microsoft 50
2 Warren Buffett United States Nebraska 42.0 Berkshire Hathaway 75
3 Carlos Slim Helu Mexico 30.0 telecom 66
4 Ingvar Kamprad Sweden 28.0 Ikea 79
5 Lakshmi Mittal India 23.5 steel 55