You'll be hard-pressed to find a poet who was more interested in outward appearances than Pound was. In all of his writing, Pound isn't the type of guy to say something like, "Forget appearances; it's what's on the inside that counts." For Pound, beauty is something that's almost always visible in someone or something's appearance, as long as you're trained to look for it properly. It's that last little hitch that makes Pound feel like he needs to educate us—with poems like "Canto II"—about what true beauty is.
Skin deep? Puh-lease. In "Canto II," Pound is very superficial. He basically says that there's no such thing as beauty on the outside and beauty on the inside. There's only beauty.
In "Canto II," Pound suggests that people who try to deny the importance of physical beauty are actually just afraid of the power this beauty holds over their lives. Deep, Ez, deep.