The amount of money I have left over at the end of the month makes a much bigger difference in whether I feel rich than the number on my paycheck. But, we're trained and encouraged by our culture to spend up to and beyond our means no matter what our income. Even the "responsible" rules of thumb like buying a house for 3x annual income or having debt payments of 40% of income encourage us to increase our expenses as…
Because they don't know any better, money becomes a hammer, and every problem looks like a nail.