By "whites" here, I assume you mean "white-collar workers". Usually, in vernacular, "whites" is taken as a slightly derogatory metonym for "white people", so I

By "whites" here, I assume you mean "white-collar workers". Usually, in vernacular, "whites" is taken as a slightly derogatory metonym for "white people", so I was initially slightly taken aback by your comment. Sorry if I was being obtuse, but I have never heard the term "whites" used in this fashion.