Although I think I'm risking a crisis of "over-posting" I want to put this forward...
Looking at building some sort of socialism, I absolutely agree. It seems that, no matter how I look at it, many of these constructions about free-market competition and equilibrium are completely cogent. The problem is what they're aimed at. Imagine if they were aimed at reducing working hours rather than wages, for example. Then surely the same maths/notions of efficiency could be applied to realising something very different.
There's an awful lot more ideological problems with socialist conceptions of economics at the moment than people would like to realise... Cut the ego; look at the aims!