Picture a grand hotel. A manager looks at the doorman and thinks: “That guy costs $50,000 a year just to pull a handle. An automatic sensor costs $500.” On paper, it’s a financial masterstroke. But six months later, the hotel’s prestige has plummeted, guests feel less safe, and taxis no longer wait out front.
This is the “Doorman Fallacy”—a term coined by marketing legend Rory Sutherland. It describes the dangerous habit of reducing complex human roles to a single, measurable task while ignoring the invisible, multi-faceted value those humans actually provide.
The Trap of Narrow Metrics
The fallacy highlights how we often ignore the “unquantified” value in our rush for efficiency. A doorman isn't just a door-opener; they are a security presence, a concierge, and a symbol of status. They recognize regulars, handle bags, and provide a human connection that changes how guests perceive the entire brand.
When you automate the door, you solve the mechanical problem, but you kill the experience. In our modern obsession with data, we often optimize for the things we can count (like speed or cost) while neglecting the things that actually matter (like trust and empathy).
AI and the Search for Pure Efficiency
Today, this fallacy is playing out across every sector through the careless adoption of AI. Organizations are replacing customer support agents with chatbots and human writers with LLMs because the “output”—the text—can be easily quantified on a spreadsheet.
However, these organizations are overlooking the nuanced interactions and adaptability humans bring to their work. A chatbot might answer a query, but it can’t sense the frustration in a customer’s voice or pivot its strategy based on a subtle social cue. By reducing rich, complex roles to a single task, businesses risk stripping away the very things that differentiate them from their competitors.
Looking Beyond the Spreadsheet
As we move deeper into the age of automation, the challenge for leaders isn't just finding what can be automated, but identifying what shouldn't be. Efficiency is a powerful tool, but it is a poor substitute for the human touch. To avoid the Doorman Fallacy, we must learn to value the invisible work that makes our organizations function. If we only optimize for what we can measure, we might find ourselves with a very efficient business that nobody actually wants to interact with.
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