Ment
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No. This means that in real life, such a choice of wife won't correlate very strongly with her loyalty, however paradoxical it may seem. Unless there are some truly outstanding features, like full lips and dwarfism, and even then, it's not a certainty.
And if there's no difference, then why bother with such tricks? It's better to simply try to find someone with a sound mind, and if that doesn't work out, then follow Revan's path.