Taint so guest, see here.

My employer comes out with individually negotiated pay schemes, it's a divisive strategy (us against each other rather than him) and pay is what you will settle for rather than having any relation to how much money you make for them. It causes endless bickering in the coffee room. You fools, I tell them. Them upstairs have the keys to the cakeshop and here's you whinging about who gets more crumbs and who does the least work.

The price of labour-power is only ever linked to productivity indirectly, wages and salaries represent the cost required for the maintenance of the labourer as a labourer, and for his education and training as a labourer - as some hairy German said. The labour market determines the price of labour, mainly modified by state regulations and union activity.