Machiavellianism is not for everyone. It is specifically a framework for people in power. Kings, Heads of States, CEOs, Commanders. Competitive environments with allot at stake (peoples lives, money, future), in these environments it is often difficult to make decisions. Having a framework in place that allows you to make decisions is very useful.
Mitch Prinstein wrote a book about power and it shows that dark traits aren't the standard in most leaders, nor they are the best way to get into/stay in power
author is "board certified in clinical child and adolescent psychology, and serves as the John Van Seters Distinguished Professor of Psychology and Neuroscience, and the Director of Clinical Psychology at the University of North Carolina at Chapel Hill" and the book is based on evidence
edit: you can't take a book from 1600 and a few alive assholes with power and conclude that. there's a bunch of philanthropists and other people around
