Economically, for someone to be called a poor isn't based upon the money itself, but the reality that a person experiences every day such that even how big you are if you're still trying to come forward just a little step is a lot difficult compared to the others is basically the poor one.
This is an interesting concept, however, I think that most people see a person poor if he does not have enough money to fend for his family every day. Sometimes, even with a day job a person still does not have enough to survive on a daily basis, not to mention the taxes and rental charges and debts one needs to pay, that person will think he is poor. Whether we like to admit it or not, money is something that can make our lives comfortable, right?