It is the same with our world now.

Wizard of Oz, “Part of Baum’s joke is that things are never what they seem. Dorothy seems to be a simple and harmless little girl, but it is she who kills the wicked witches of both East and West. The Scarecrow seems to lack brains, but he has all the ideas in the company. The Tin Woodman seems to lack a heart, but he is so full of sentiment that he is always weeping. The Cowardly Lion seems to be a coward, but he takes brave action whenever it is called for. The Wizard seems to be great and powerful, but he is actually a humbug. Oz seems to be a glorious and delightful land and Kansas to be dry, gray, and dull-but Oz is a world of illusion and Kansas is really home. Things are not what they seem, in Oz or Kansas.”
Who's Dorothy?!

I think Dorothy represents the naive dreamer who falls for all the worldly illusions and traps set by those who do evil. Thank goodness she had friends who protected her and helped open her eyes to reality.