All socio-political phenomena in the U.K. come laden with the baggage of a class-based theory or two attached to them. In the case of gay Tories, there is one particularly silly variant of the category, which asserts that gayness is bred in public schools and thus fits with Conservatism like hand in
Because interrogations are intended to coerce confessions, interrogators feel themselves justified in using their coercive means. Consistency regarding the technique is not important; inducing anxiety and fear is the point.