This revelation is a stroke of narrative genius.
While Sheldon is looking at digital numbers, Missy is looking at physical demand. She starts her own business in this episode, reminding viewers that while Sheldon may have the IQ, Missy often possesses the social EQ and "street smarts" that make her just as formidable in her own right. Meemaw’s Gambling Empire young sheldon s05e16 h255