Next time you go into a discount retail store, take a look at the staff there. Now imagine that is the only job that you could get. How miserable do you think you would be working as a cashier at Walmart? Or a stock chaser at a grocery store? Yes, I making a fallacy of relative privation, but it is true that no matter how good any one person has it, they often feel that they are miserable and want better.
The power of Negative Visualization :)