When did the disintegration of the working cl commence?

It occurs to me the idea of the hard working, polishing your doorstep, salt of the earth working cl has all but disappeared. Years ago we could make a Sunday lunch last a week with various receipes, now we couldn't cook a fairy cake if our life depended on it. When did the working cl disintegrate into a chav undercl? On a programme tonight they couldn't even recognise Fergie. I mean the working cl would normally hate royalty or adore the anachronsim - either way you would recognise her.