I'd like to quote from "The Greatest Britain"
"It was formerly supposed that the workings of the laws of supply and demand would in the regular and natural course of events, and by a steady progression, eliminate that evil, and achieve adequate minimum standards. Modern opinion has found it necessary greatly to refine upon these broad generalisations of the truth, and the first clear division that we make to-day in questions of wages, is that between a healthy and unhealthy condition of bargaining.
Where, as in the great staple trades of this country, you have powerful organisations on both sides, with responsible leaders able to bind their constituents to their decisions, conjoined with automatic scales, or arbitration or conciliation in case of a deadlock, there you have a healthy condition of bargaining, which increases the competitive power of the industry, which continually weaves more closely together the fortunes of Capital and Labour, and which enforces a constant progression in the standards of living and of productive power. But where, as in what we call "Sweated trades," you have no organisation at all on either side, no parity of bargaining between employers and employed, where the good employer is continually undercut by the bad, and the bad again by the worse; where the worker whose whole livelihood depends on the trade is undercut by the worker to whom it is only a second string; where the feebleness and ignorance of the workers and their isolation from each other render them an easy prey to the tyranny of bad masters, and middlemen one step above them upon the lowest rungs of the ladder, and themselves held in the grip of the same relentless forces--there you have a condition not of progress but of progressive degeneration. And just as in the former case the upward tendency will be constant if it is not interrupted by external power, so in the latter case the demoralisation will continue in a squalid welter for periods which are quite indefinite so far as our brief lives are concerned." Churchill, W (1909)