The whole "nofap" thing started as a way for people who were viewing too much porn to give their minds time to start the process of rewiring to be normal again. It was meant to help with side effects of too much porn like depression, lack of motivation, erectile dysfunction and sexual desensitivity. It wasn't meant to be a fad that people just do because of some list of supposed benefits for everyone because you generally won't get benefits from it if you don't view so much porn that you're having negative side effects.
Long story short, it's not supposed to give you benefits so much as helps to eliminate disadvantages of viewing too much porn. If you don't view too much porn, then you probably don't need to be doing this.