How is it extortion? If you need 1 resource in the whole world, the supply is 1. If your demand is great then you get to pay the price. This person left the co

How is it extortion? If you need 1 resource in the whole world, the supply is 1. If your demand is great then you get to pay the price. This person left the company, and documented everything. What should they do, come in and save the day for $15/hr?