@John@Noble Dust
Good convo, just want to toss in a parenthetical aside about Hegel's Master/Slave dialectic, partially to refresh myself.
The reason the master can't recognize the slave's humanity is because he can't even recognize his own. For Hegel, freedom arises out of self-consciousness, and self-consciousness is a recognition of one's essential negativity. Negativity, in this context, doesn't mean 'evil,' but the negation of everything 'determinate' about oneself (To make this more concrete, it's a bit like smelting one's identity by melting away everything that comes from one's contingent lifeworld - Who am I? Am I a Mainer? A US Citizen? A dispatcher? A brother? Importantly the same process has to be done with reference to what one desires too. What remains is not simple nothing, but the absolute freedom of self-relating nothingness.)
The slave, in Hegel's strange parable, is a slave because he has experienced the fear of total annihilation. He was utterly at the mercy of one who could kill him, but was spared and made into a slave. In experiencing this fear, says Hegel, he has experienced immediately his inner nothingness.
Then he is set to work, shaping the world not according to his desires, but to the desires of another. In (a) experiencing the nothingness of his identity and (b) acting upon the world with no determinate purpose of his own, he comes to understand, so the story goes, the essence of freedom, of what a man really is. His 'in-itself' has become 'for-himself' The Master can't understand this, because he's still totally immersed in his life world, acting out blindly inherited desires he's never questioned, but feels as his own.
He requires the recognition of the slave because he is not able himself to confront and work upon the world, but requires a mediating workman. Since he has not made his identity's in-itself for-himself, and since, for Hegel, an in-itself always needs to express itself, he must seek the for-itself in another. The slave, on the other hand, has freed himself from such a dependence (though this, too, is just the beginning of a much longer process.)