Roosh is correct in ascertaining that leadership requires solitude. The reason is not that there's some kind of psychological quality and trait in being a loner, but in being alone or having lengthy periods of time by yourself you are allowed to think, ponder and philosophize. A disproportionate number of my higher quality pieces are a direct result of me driving thousands of miles either on my motorcycle or in my car out west, only to hike for countless hours in the western wilderness. After you run out of podcasts and MP3's to listen to, you start listening to yourself and your brain goes on journeys as long and as far as your hikes.
Another thing about being alone or being a "loner" is it requires a fair amount of confidence and faith in yourself. You have to be an interesting person if for any other reason to entertain yourself. You need to stimulate your mind and intellect and not just engage in thought, but engage in activities that challenge you. Most people will not be able to keep up (for example only one person I met in Wyoming could keep up with me hiking), reenforcing your solitude. But you're OK with that because you don't mind being alone advancing your thoughts and philosophies to new frontiers and epiphanies. Just don't expect anybody else to be on Deseret Peak pondering flaws in Austrian Economic theory.
Finally, you must look at what kind of careers or jobs are conducive to being a loner. It is no surprise corporate heads are the most bland, cookie cutter, vanilla wafer intellects in the entire US population. If they do what they're told and are good little cogs, by the time they reach upper management their brains have melted. It is merely anecdotal, but the few higher up people i've met are not intelligent, not engaging and not interesting. They certainly aren't leaders like the founders of the companies who were visionaries. They are conformists who paid the price of intellect and independent thought so they could afford beamers, a McMansion and a "career" that is so drab and dry their brain doesn't even realize it anymore. You wouldn't want to have a beer with them and you certainly wouldn't want to date them. It is also why some of the most interesting people I've met in my life are security guards and truck drivers. They got all the time in the world to think and ponder. Corporate cogs can only tell you how exciting it was to do data entry.
So before you decide to enter a career as a good "corporate man" you have to ask yourself the question NOT if your mind can handle it. But is it worth the price you have to pay knowing your brain will never fully develop and reach it's intellectual and philosophical peak. Because I don't know about you, but life is too short to have boring thoughts or be that person who thinks "boycotting oil on that ONE day" is somehow deep economic or political thinking.