You raise some fair points there ,
Thatcher encourage self employment to a degree which suited the industry , productivity was quite poor , I went from earning £ 250 per week to 400-500( 1987) as a sub contractor on the old 714 ticket getting paid and rewarded for putting a shift in , the lazy ones sink who fault is that .
you will always get unscrupulous employers that take advantage its the way of the world
back in 94 I ran a number of sites doing work for local authorities, they know how to waste money , the difference in attitude of council employees and sub contractors chalk and cheese, give me a subbie every time
I know all about the black listing as I personally know the person responsible for blowing the lid on it a mate of mine.
it cost him a great deal personally to do this , nearly broke him , unions were all in on this with major businesses