I have heard a theory that 3 out of 10 people are important for the company. 
Being one of the 3 is very important, but it doesnt mean you will be promoted. 

Satosora

Penny wise and pound foolish

I wondered that a lot when I was younger and worked retail. I did about 4x the work of the other employees (and it's not like I was trying particularly hard, there just wasn't anything else to do). I often wondered why they didn't pay people like me twice as much, hire half as many, and get twice as much done.

I think the answer is that there are far fewer good employees than you probably think.

Undisciplined

econ

Full-Time Jobs Fall Again as Total Employment Flatlines in April

I guess that is true. 
The warm body theory comes back. 
I have always wondered why companies dont pay competitively, especially when they are so profitable. 
Isnt it better long term to have good employees?
