The thing about the real world is that it's messy and complicated--and that means no matter where you go, what you do, or what vocation you have there's going to be messy and complicated factors--especially people, because we're incredibly messy and complicated creatures.
I mean, I suppose there's always the option to join a monastery or go live as a hermit. But that's not going to make the world any less messy and complicated, and it's not going to change the fact that human beings are problematic creatures.
In the Lutheran tradition we conceive of vocation as ministry. By this we don't mean what one often sees in modern American Evangelical culture where businesses plaster fish symbols or Bible passages on their signs or business cards; we mean that whatever one's station in life, whatever one does in their life--in relation to their fellow human beings--is an act of Christian service, of serving and loving others: as a mother, a husband, a brother, a friend, a daughter, a lawyer, a doctor, a ditch digger, a member of the clergy, or as a shoe cobbler. Of course no matter who we are, where we are, or what we do we're going to be interacting with sinful people, because people (all people, including you, me, everyone, Christians and non-Christians equally) are sinners. But it is precisely to this world of sinners that we are called to serve and love, by giving freely of ourselves to others as servants.
Whether your vocation is in the entertainment industry or as a monk on the mountain, we bear our Christian service to others in love, serving our fellow sinners in the ways which are available to us in life.
-CryptoLutheran