"Some people excel.... on well... giving good interviews."
The sort of interview that this guy would do well in is a poorly-conducted one. A simple question like "what does it mean to hash a password and why would one do that?" or "what is PCI?" would expose his incompetence.
Your assuming that the person interviewing him knew what the answer was supposed to be. It sounds like the incompetence goes all the way up and he was probably hired by a businessman who had no idea what PCI even is, much less the details of proper security.
Back then, I used to believe that people know what they are doing, but since I've lived long enough know, maybe not.
You gotta be careful, people like that will come to personality attack when push come to shove. When facts are against them, it is now time to yell.