What lesson does Miig teach Frenchie at the resort?

Miig offers Frenchie an important lesson about the relationship between survival and sacrifice when they enter the Four Winds Resort. Before entering they must check to see if the fencing is still electrified. Miig prepares to touch the fencing, but before he can do so, Frenchie nervously touches the metal instead, feeling that Miig is too important for the group to lose. While the fence isn't electrified, Miig scolds Frenchie, telling him that “No one is more important than anyone else,” and “No one should be sacrificed for anyone else.” Frenchie wanted to sacrifice himself for the greater good of the group, since he felt they needed Miig to survive. Yet Miig implies that each member of the group is equally important to their survival, perhaps in ways that they are not even aware of.