What's the purpose of self improvement? Is it to get an aesthetic body, wealth, and girls? Ultimately, who cares? We will likely be losing our wealth soon. Our bodies will decay in only a few decades. Ultimately self improvement is about striving for the sake of Allah, not even just to better yourself, but to make a difference in the world. There's a battle between good and evil coming. The purpose is to be prepared for a future world that is going to be hard, where you won't have money in the bank and fast food down the street and your family will depend on you. It's for the families being torn apart by modernity. It's for all the children that are becoming porn addicts. It's because of children being so confused they don't even know what gender they are. It's for children being sex trafficked. It's because of all the people turning to drugs and suicide out of desperation because of nihilism and modernity. It's for the millions of people killed around the world by tyrants. This is all happening on our watch, and unless men take action, nothing will change. "Evil triumphs when good men do nothing" Edmund Burke