5. MARIAN ILITCH

$4.4 billion  SOURCE: Little Caesars AGE: 88 • RESIDENCE: Bingham Farms, MI SELF-MADE SCORE:  Stay-at-home orders were a boon for pizza makers like Ilitch’s Little Caesars. Mrs. I, as she’s known, cofounded the chain with her husband, Mike (d. 2017), in 1959; sales hit a record $4.5 billion last year. In April, Ilitch inked a deal to buy an Atlantic City casino; the family also owns MotorCity Casino and the Red Wings hockey team.