I've noticed that some reality competitions have produced successful celebrity figures such as American Idol, introducing Kelly Clarkson, Adam Lambert and Carrie Underwood to the world; Survivor, turning contestant Elisabeth Hasselback into a talk show hostess; and American Ninja Warrior, providing Jessie Graff the spotlight to become the "new Jackie Chan" with an incredible fan-base. Outside of CBS-Amazing Race territory, I've only immediately recognized Canaan Smith from season 15 who has grown his fame substantially by releasing a hit country single and discovered Blake from season 2 becoming the founder of TOMS shoes.
Are there any other media newcomers who went onto do and become bigger public figures? Those already well-known in their fields and media moments (Adam & Bethany, Josh & Brent, Caite Upton, Survivor/BB crossovers, etc.) don't count.