Pursuit of happiness

Studies by economists show that money is directly related to happiness until it leads people out of abject poverty. Beyond that point, the marginal utility of money (towards increasing happiness) keeps decreasing. The happiness level of someone making $1 million versus $5million is not too different. This however does not stop people from mistakenly viewing money as a source of happiness, and wasting their lives in it's pursuit, but as Will Smith speculated in the film 'The pursuit of happyness', maybe the whole point of that phrase is that happiness is something to be pursued and never attained?