How would you define a poor person?
Is a poor person somebody who has no money but debts?
Is a rich person somebody who has all what the poor does not have?
Is a wealthy person somebody who has money, friends and freedom?
In our world there are rich people that have a lot of money but no friends, family, and freedom. They might have money and can buy themselves nearly everything.
In our society people who have a lot of material status are considered as being rich. If you have a 1000m2 house, a great car, a boat and 5 Rolex watches you are considered a success in our world.