The economic reality is that each individual merely contributes to the joint activity of creating value for the customer. At the same time, it promotes the egoism of 'economic man' rather than mutual responsibility within the work community. Both of these are starting to emerge and grow in different ways. In a productive enterprise, value is created by the interaction of human effort, human intelligence, resources and human needs. Labour then becomes not a commodity, but one kind of contribution to the creation of added value, which leads to the right to an agreed share in that value.
Capital investment is another contribution, also deserving an agreed share in the returns.
The sharing of added value is not the same as performance related pay, which can isolate people from their work community and is often based on non-economic criteria. It does however include the results focus which performance systems strive to emphasise - because only value which has actually been created can be contractually shared. Fees, not wages. In most cases, the overheads of the service-provider are controlled by themselves and included in the fee charged. Time may be a factor in calculating the fee, but it is not the time or even the activity which is sold, but the output, the service.