Should it still be considered breaking the Prime Directive if you are fixing/adjusting the work of another advanced culture which previously infected a world’s advancement and beliefs? Also, for it to have been perpetrated by the Denobulans is just upsetting. On “Dear Doctor” (ENT s1e13) Dr. Phlox, a Denobulan, explains how the actions of Archer’s crew would drastically change the historical and cultural outcome of a planet.