I grew up with Mailer and Vidal and their long standing, and sometimes colorful, feuds.
As a gay guy, Vidal was a hero of mine when I was younger, so I always carried an unfair bias against Mailer anyway. As I aged, I came to see Mailer in a more mature light and actually came to like this rascal and his typewriter...because he could write, could tell a story, and had such a great and fun way with words.
In Woody Allen's film, "The Sleeper", the fellow wakes up in the future and is shown a photogrpah of Norman Mailer who Allen's character says, "I think he donated his ego to Harvard." LOL!
My companion took a photo of me in Provincetown on Cape Cod in front of Mailer's cottage there after our morning walk. Norman, who perhaps was the most reactionay voice of machismo during those early years of women's liberation and gay parades, lived his life quietly with his wife in a gay enclave on the Cape. I have no doubt that Mr. Norman Mailer relished the irony of that.
My answer to the question posed is that the man and his work go hand in hand. Certainly, knowing Norman makes reading him more enjoyable.