Get this out of the machine room College!
No jumpers sign on the controllers. This is a generally accepted good idea and a part of the elevator code.
Perhaps we didn't see the sign on the controller
It has been many years since the head was wiped off
Good elevator maintenance practices will reduce shut downs, prolong equipment life, allow for easier future maintenance and increase the safety of the elevator equipment. You will not make a immediate return by performing proper maintenance but in the long term there is a benefit for all parties.
The problem with public bids is that usually the low price comes with the lowest level of service. So perhaps the building doesn't want to pay for a good maintenance program, perhaps the elevator contractor doesn't allow the time for the elevator mechanic to complete elevator maintenance, or perhaps the elevator mechanic is complacent and uses this group of buildings to pad time. This idea is something the building owner, elevator contractor and elevator maintenance tech all need to have buy in for.