Strikes me that over my lifetime the people who have been most active in introducing doctrinaire changes based on ideologuical preconceptions have tended to describe themselves as "conservatives". For example Thatcher and her admirers. (Who now include Tony Blair, though he doesn't describe himself as a conservative, but uses that as an insult to throw at anyone who disasgrees, especially Socialists.)

I don't think that's an appropriate term for people who are really following the old 19th century liberal dogmas, and who seem completely lacking in what ought to be the central conservative quality of distrusting change unless it can be proved necessary.