The closer an animal or plant is to its original state, most likely, the more healthy it is. Curing in its many forms has been around for since as long as man noticed that salting, dehydrating, etc. made food last longer. The pigs from which the bacon comes from may be factory, pastured (or at least close to pastured), or wild. "Bacon" covers a wide range of quality.
"Bacon will kill you!!!" is barely a statement worth wondering about.
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine