George Q. Cannon maintains that all must obey law of celestial marriage to be exalted.
George Q. Cannon, "Difference Between The True Church of Christ and the Churches of the World," Journal of Discourses, 26 vols. (Liverpool: Albert Carrington, 1882), 22:124
Some men think they can slip around—I have heard such men talk—they think they are going to get into the celestial kingdom without obeying the law of celestial marriage. I do not have any such ideas about exaltation . . .