And to comment further, despite the Left's hatred of Margaret thatcher and the Tory's tag of being called "The Nasty Party," it's ironic that, amongst the drivers, cleaners, table servers and other support functions at No.10 and Westminster, Tories tend to have a better reputation for showing a great deal more respect and consideration than their successors.
Lady Thatcher herself was very well liked by the staff at No.10 in stark contrast to Gordon Brown!

Perhaps the Tories are viewed as being "nasty" in the same way that a dentist, having to carry out painfull treatment to remove or repair a tooth after years of neglect and misuse can be viewed as nasty?