If you train your slave properly, you can expect to see this kind of pride on it's face after an intense session of abuse because it's position in life is so thoroughly reinforced that it finds it's purpose in serving and accepting daily punishment.
Korean maso gook here:3 I feel so shameful by doing this pathetic pose, but my maso cunt flinches and my dumb mouth drools.. Please humiliate my gook inferiority, oink!!😖