Man's memory is very selective, although some have better memory than others. Having a photographic memory is no good if that individual didn't know how to use the information memorized. It would ultimately depend on how well any individual is able to use memory in their social interactions and on their job.
It also helps if the individual has charisma whether it's with family, friends, business associates, or as a politician.
It's been researched that the majority of humans use only a small part of our brains potential.