It's kind of the same concept as the student becomes the teacher, the slave becomes the master, etc. Anyhow, such a principle typically exists wherever there i

It's kind of the same concept as the student becomes the teacher, the slave becomes the master, etc. Anyhow, such a principle typically exists wherever there is an opposing relationship of sorts. In the case of money, for every debtor there is a creditor. Generally, people often equate having lots of money = wealthy, and those with lots of debt = poor. But you can flip this relationship, if those in debt never actually repay (in real terms), and instead simply repay their debts with further debt.