Exploiters and labourers or just free exchangers

Producers-consumers provides one framework in which to see grave exploitation and the injustice of forced condition of labour for low wages. In another framework we can see people as exchangers. Some exchange labour for wages others provide some of their capital for others' labour. While the latter seems much more neutral and less politically charged it has lost an aspect, one which we should not disregard. It is the aspect of freedom. Labour moves very slowly into a better position in a constant tug-o-war from contract to contract and always begins at a very low wage, while the entrepreneur can sack and rehire as long as there is a steady supply of the unemployed.