The displacement of want

Incentives work by relieving wants or lacks. 

That the relief of the want comes at the expense of the aggravation of a want for the same thing at some other (future) time or of the want for the same thing by some other person does not factor into the analysis. The displacement of want to some other time or some other person operates through the mining of the resilient core. 

In order for the market mechanism to work properly the resilient core needs to be put out of its reach, which is to say the resilient core must be understood as inalienable. 

A gift, after all, takes the same thing and displaces it from one person to another as a traditum. To make the market function so that it stays out of the resilient core is, in effect, to make the market not function as a source of negative gifting.