I think that this episode shows how important it is to be a jack of all trades type of individual.  You can't just stick to one skill and expect to get through life.  It also proves that you can't buy happyness with money.  I was taught by my father that when you get a job, you need to learn everyone's job.  Otherwise you would be likely to be laid off when the company starts to struggle.  This episode definately puts that lesson to practice.