The metaphor that turned every job into a rung assumed you could only move in one direction.
Before the twentieth century, most people did not describe their working lives as a vertical climb. Farmers, craftsmen, and tradespeople moved through seasons and apprenticeships, not levels. The idea that a person should enter an organization at the bottom and ascend through a fixed sequence of positions belongs to the era of large corporate hierarchies.
The career ladder became a defining metaphor of industrial management as companies grew large enough to require multiple layers of authority. Frederick Taylor's scientific management principles, which separated planning from execution, created the conditions for hierarchical promotion structures. Each rung represented a step closer to the people who made decisions and further from the people who carried them out.1
By the mid-twentieth century, the metaphor had become so embedded in organizational life that it shaped not just how companies were structured but how individuals understood their own ambitions. A 2010 Harvard Business Review article by Cathy Benko and Molly Anderson argued that the ladder was a metaphor suited to the industrial world of the previous century, proposing the "corporate lattice" as a replacement that allowed for lateral and diagonal movement.2
The spatial logic of the ladder carries assumptions that are easy to miss. It permits only upward movement. It implies a single track. It treats the greatest rewards as available only at the top. A person who steps sideways or down is, within this metaphor, failing.
In 2023, McKinsey's Women in the Workplace report identified what researchers called the "broken rung," the point at which women are first promoted from entry-level to management positions. For every 100 men promoted to manager, only 87 women received the same promotion.3 The metaphor had become literal enough to generate its own diagnostic vocabulary.
Deloitte's lattice model, introduced in 2010, proposed that careers could move in multiple directions simultaneously, accommodating changes in pace, workload, location, and role. The original career ladder offered none of these options. Its design assumed that every worker wanted the same thing, that the path to it was singular, and that the only meaningful direction was up.4