Hamlet: Is He an Unlikely Hero?

Hamlet is the not the typical hero many would envision when considering Joseph Campbell's The Hero with a Thousand Faces, but he does have many of the characteristics that other heroes have. His call to adventure comes from the ghost of his father. Though Hamlet has many helpers on his journey, he never seems to fully trust any around him and kills or has killed all who seem to act as allies (Rosencrantz and Guildenstern) or mentors (Polonius). Perhaps this is because the hero must act alone and complete the journey without any outside aid. As stated on the handout, "the action occurs in a heroic past. With the exception of Omeros epics feature the heroes of a culture: the kings and warriors. The churls and gravediggers are of little consequence. In epics, the heroes illustrate how members of society should behave to create a better world for all. How Hamlet accomplishes this, I'm stumped. Also, after the hero completes his task i.e. avenging the death of his father, he should emerge with some great wealth (whether tangible gold or a great revelation), but Hamlet is left to die. (In fact, everyone seems to die; the body count is remarkably high even for a Shakespearian tragedy.)