Power
If the number of people depending on the elevator is equal to your power, then hello sunshine―you have about a million power-bucks. Whether it's due to a disability, a health issue, or (most likely) the spike-heeled power shoes so many fashionable people wear, taking the stairs is often out of the question.
So, someone had better keep the elevator in good working order. In this case, that would be you. The efficiency of a building and all of its occupants is left to your very capable hands.
Of course, because pesky ol' gravity is at play here, your job absolutely requires abiding by the age-old maxim of "safety first." There's no pleasure in shutting down an elevator bank to repair it. But, if that's what you have to do, you'll do it quickly but safely. Safety trumps convenience every time.
The person in charge of keeping the elevators in good working order will also have a lot of influence with the building manager. If upgrades are required, or if a shutdown must happen, you're likely to have the authority to make it happen immediately.
Why? Because you have a special set of skills the pencil pushers in suits and ties don't even begin to understand. What they do understand is how much it'll cost if someone gets hurt because proper safety and maintenance guidelines weren't followed. You aren't about to let that happen.
Just don't forget, you'll probably need to coordinate any elevator shutdowns with the building maintenance chief. It's actually more likely the building maintenance chief will come to you about coordinating shut downs. Of all the unsung heroes who ensure the day-to-day functioning of hospitals, office buildings, and high-rises, you're one of the most important. Chew on that, breezeway and lobby cleaner.