“I was the first high school graduate in my family”: these leaders who prove that the social elevator still works. Descendants of workers, farmers or artisans, these executives reached the heights in their field.

They were able to count on the support of their employers or the environments in which they operate, conducive to social advancement. This mathematics teacher turned Philippe Chainieux's life upside down. He now occupies the chair of general manager of La Centrale, a used car sales platform. If he had not left the South for the Paris region, would he have embraced…