[kjkjadksj]

It isn’t that simple because your profit upside is usually finite. Say you run a lemonade stand in a small town. Number of employees can’t really exceed some threshold set by the amount of lemonade customers a given day in that town. Even if the employee is the profit producer. It isn’t an infinite money machine and money has to be made available to seek.

[rorylaitila]

Yeah that's correct, I mentioned "Of course any individual company may have other constraints that makes hiring additional people unviable". One such constraint would be the total market size.