I do not know of any government for whom ensuring its legislation is constitutionally compliant is not a primary concern, unless it is acting in bad faith, as Ms. Buckley said earlier.
However, history has shown us that even well-meaning governments that want to have constitutionally compliant legislation, sometimes, and indeed very often, are guilty of infringing the Constitution. For example, I believe that the decision regarding the Court Challenges Program violates the language protection provided by the Charter. This is a matter that needs to be clarified by the courts. That is just one example of a contradiction.