| The amount of value they add Company X needs to employ two people in a role. The person they employ will add $100 an hour of value to the company. Person A has lots of money in the bank from a large inheritence and doesn't need the job to live Person B has desparately needs a job to pat the mortgage Company X offers both $40 an hour Person B takes the offer, as the alternative is reposession Person A says 'no' Company X still wants that extra $100 an hour of value, so offer person B $50 an hour, then $60. Person B then accepts at $60. Both person A and person B are worth $100, neither get paid what they are worth, but person A is paid 50% more than person B. |
If person A in your narrative was capable of creating $100 dollars of value all by themselves, they would do that instead. But they can’t. The $100 opportunity exists because of the company.
The company needs a shovel strong enough to dig up the $100. If one person will sell such a shovel for $40, and that’s the best price available, they’ll take it. That was the market value of shovels. It would be wrong to say the shovel was worth $100. Even if all the shovel sellers in the area knew about the details of this opportunity and decided to set they’re prices at $99, it would quickly become apparent that shovels aren’t really worth that. Two things would happen: sellers would defect and set they’re prices lower than $99 to secure the deal; this would happen as long and there was still and profit to be made. And the company would remember what a shovel was supposed to cost, get suspicious, and look in to manufacturing a shovel of they’re own, or commissioning a rake shop to make one.
This game of price setting is pretty good at approximating worth, especially compared to your proposed strategy of measuring the delta between company profits in reality, and in an alternate reality where the employee didn’t exist and the company didn’t attempt to fill their position with anybody or anything. The latter is not worth talking about.