How the world’s mysterious rich people made their fortune

[post_page_title]Mary Barra[/post_page_title]

While Mary Barra may not be as astronomically wealthy as some of the other people on this list, her net worth is still nothing to scoff at. She’s worked through the ranks at General Motors Company since 1980.

Mary Barra

She began just working as an quality inspector in order to help pay for college, but diligent work brought her all the way to the rank of CEO at GM in 2014. The successful businesswoman also serves on the board of Disney, in addition to a few other councils.

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