Not all prevent implantation of a fertilized egg. Different methods/pills are used for different needs, as well. Even single women who are not sexually active may be on birth control pills to regulate periods or for the symptoms of endometriosis. If these are used then it is a lesser of two evils for married women. Catholic women should always talk to their priest, in consultation with their doctor, about what is all right for them to use.
As for your comparisons, Randy, I had to chuckle when I read them. Certainly the various roles/duties of the ordained and lay have been described in times past–usually as shepherds and their dogs (I’ll let others guess which persons belong in which category

).
And of course in each case there are people who are faithfully doing what they should be doing and those who aren’t–that’s due to our fallen human nature, so I’m never alarmed when I learn of someone’s failing(s) nor scandalized. I merely pray “There but for the grace of God go I.”
And a agree that apologetics apostolates ought to have some oversight. Not directly by the Vatican, but by our bishops, although someone with an eye on apologetics in the Holy See wouldn’t be a bad idea. CA has such oversight, I believe. Those that don’t, should be avoided, IMHO since they can be nothing more than vehicles for personal opinion rather than proper defenses of the faith.