What Does, “self-improvement Is Masturbation. Now Self-destruction…” , Mean?

“Self Improvement is masturbation, self destruction is the answer.”
What Tyler Durden (Brad Pitt) is saying in the movie Fight Club is that society has instilled some values in most people that are way off the mark. They aren’t doing anyone any good. You can use affirmations and other self help tools to help you progress, but basically you are building a sky scraper on a plot of land originally designed for a tin shack.
What of self destruction? It sounds very negative, and counter productive. It goes against what a lot of self help books recommend, but some times it might be the best thing to do. The way I see it, the further you have ‘progressed’ the harder this is going to be, so the sooner you take a look at yourself and consider your core values, and how they are helping you, holding you back, or will hinder your progress in the future, the easier it will be to back track, dig deep and really uproot yourself until you get it sorted.
This isn’t to say that everyone needs to strip themselves back to the bare essentials and work their way back up. But in some cases, it might be the best thing. Think of it like putting band aids and sticky tape on top of a massive open wound. If you ripped off all the self improvement hacks and started again you could really tackle the foundations of your self, and build a base that will last you the rest of your life.