Then that's when they should leave to work for that someone else.
My point is just that we talk about what people are worth or, more accurately, what their labor is worth - but it's not an intrinsic value. It's entirely subjective. What a job is worth depends on who is paying for it and who is doing the work.
Completely wrong. Let me tell you what your value as an employee is: you are only worth as much as the next person your employer can find to do the same job with the same quality of work. That's it.
If you operate a drill press and make 20 dollars an hour, the reason you are paid 20 an hour and not ten is because your employer can't find a good drill press operator for ten bucks an hour. In fact he probably couldn't find a good operator for fifteen. That is why you are worth 20.
If your talent and experience only extend to making french fries or sweeping floors, anybody can make french fries or sweep floors. Therefore you are paid minimum wage because your employer can get anybody to do those jobs.
When you acquire experience, learn a trade, or otherwise do work that less people are capable of doing, your value as an employee increases. You can find 50 people to sweep your floors, but you're not going to find 50 mechanical engineers to create machines that make the parts you produce.
Back in the early 80's I attended electronics school for my job. But working full time and going to class three nights a week really started to burn me out quickly. So I questioned my teacher about how much I could make after I graduate at the end of the year. He told me about 16K a year. Stunned, I asked what kind of money I could make if I graduated with a two year associates degree? He told me about 18K.
Electronics is very difficult. It's a lot of math and training. So why such little pay? Because at the time, everybody and their mother wanted to get into electronics. Supply and demand.