I don't think you understand what I'm saying. I'm not saying getting promoted. I'm saying getting better at being a janitor, or rotating between different properties, or learning to do a little light maintenance, or operate a lift or clean windows, or anything to break up the 100% identical routine.

If you're a contracted employee, there's zero investment in you as an employee. You come in, do the task, and leave.

You're touching upon a little of something called 'The Growth Mindset' - https://en.wikipedia.org/wiki/Mindset#Fixed_and_growth

In the Bay Area schools my kids attend, they are working hard to emphasize this growth mindset. I think it's huge component in job mobility, whether it be upward or sideways.