The success enjoyed by the trade unions recently in establishing that, across the economy as a whole, we can put a minimum value on particular categories of work has been of immediate benefit to thousands of low-paid workers, and particularly to carers, many of whose wages have been held down because of their gender.
But that success has also brought out of the woodwork those who are pathologically hostile to workers' interests. Mike Hosking in the Herald, for example, was quick to decry the unions' efforts to extend that principle to other categories of work.
The trade unions are hopelessly out of date, he argued. There is no alternative but to have wage rates set by individual employers since only they can accurately assess the market forces that bear on them and that determine what they can afford to pay.
But every business has to take account all the time of a range of costs for which there is a going rate. Rent or other accommodation charges, taxes, rates and other levies, interest paid on borrowings, raw materials, power and transport costs - the list is almost endless. In each such instance, the business simply has to pay (perhaps after some negotiation at the margin) the rate that is set. And businesses simply get on with it, without any objection in principle being raised by the Mike Hoskings of this world.
So why should it be different when it comes to just one particular, and arguably the most important, category of costs? Today's economy does not grind to a halt because individual employers cannot themselves fix what they are prepared to pay for power or fuel, or any other of the going rates with which they are faced. Why should it be any different in respect of a going rate for certain categories of work?
Hosking says that each individual employer must be free to drive down the wages they offer to the level that suits them. He seems to see the cost of labour as being different from other costs because the employer's power in a one-on-one negotiation over wage rates means that each individual employer can have a crack at getting a competitive advantage by offering a wage rate that is lower than that paid by his competitors.
There must also be the suspicion that, as Hosking imagines it, employers see the employment negotiation as essentially a contest between themselves and their workers to decide who gets the lion's share of any revenue the enterprise might earn.