I am not sure I would go quite that far - a lot of McKibbin's discussion of the government is guesswork - but this observation on wider British society is spot on:
Manufacturing takes place within the social world. Different kinds of people have an interest in it and its success or failure has observable social effects. Banking and finance, though we need them, are now asocial activities.
When banks still had managers and close links to their local communities their attitudes were not so different from those of their clients. That is much less true now. The making of money, often a great deal of it, takes place in an enclosed world where long-term consequences are not considered. There has always been some feeling of separateness in banking and finance, but it has become much more pronounced in the last twenty or thirty years.
The testosterone-fuelled atmosphere in the trading rooms bears little resemblance to most workplaces, except perhaps to the newsroom of the Sun or to 10 Downing Street during the last Labour government.