Christy earns hundreds of millions of dollars in Wal-Mart dividends alone. Without ever lifting a finger. Christy Walton is the richest woman in the world due to inheriting money from her late husband, one of the heirs of the Wal-Mart fortune, and from their investment in First Solar. The second richest woman in the world is Christy's sister in law Alice Walton. Christy is the 10th richest person in the world, overall