"As Canary says, is the country really better in the stranglehold of million-pound-bonus bankers than of basic-wage trade unionists? "
I don't really accept the premise of the question to be honest, but if you really pressed me for an answer, I'd say yes.
It was my understanding of the 'credit crunch' that it was the growth of 'shadow banking' across the Western world, and evasions of existing regulations rather than abject deregulation that was responsible. I appreciate this might seem facile, but for the subject at hand they are a different set of circumstances. I'm not really convinced that blaming Thatcher for the current crisis is any more legitimate than, say, blaming Gordon Brown (as some sensationalists have done).
I do agree though that Thatcher's economic reforms are responsible for the UK's particular vulnerability, if that's what you were getting at. And her failure to rebalance the economy was one repeated by every political generation since.