Cheap shot or not?

Suppose the only people in the world are Hannibal the millionaire, a slave trader, and 10,000 penniless orphan slaves. The slave trader has no direct use for his slaves, but likes money; Hannibal, on the other hand, is a ravenous cannibal. According to Robin, the "optimal outcome" is for Hannibal to get all 10,000 orphans and eat them.