[flyinglizard]

You pay the asking price if the product provides you enough value. Negotiation is simply setting the asking price, which is absurdly mundane in a free market economy. In fact, not setting an asking price - thus letting the buyer decide what he pays - contradicts norms.

The metric of “how well you do your job” is highly subjective anyhow; between an employee, their manager, their product manager, their coworkers and HR there would be significant variance of opinion.