Comment: I understand your analogy quite well

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In reply to comment: ...Oh, and you misinterpret (see in situ)

I understand your analogy quite well

Yes. I understand you. In fact, comparative advantage even works if you can both peel potatoes AND shuck corn faster than me, because you'll specialize in one and leave the other task to me.

You're still missing the point about NATIONS.

Comparative Advantage will NOT benefit a high wage NATION without fixed capital and fixed immigration.

In your scenario, the potato peelers and the corn shuckers will all migrate with their capital until their original NATION's wages have been brought into parity with others.