Every year they made two public lists. The 25 most powerful people were on one list, the 25 richest on the other. Some were on both lists. If you land on one of those lists, you have seven years. Seven years after your appearance on the list, they take everything from you, and place you in a serviced home, where you can live out the rest of your life peacefully.
For the first 10 years these lists were made of 100 people.
The world was a lot more peaceful since then.