Damien was also a victim of this mentality.
As he got older, no matter how much he wanted to use power to force his way through everything, he found that intellect was necessary to do what he wanted.
His enemies were too powerful and much, much smarter than him.
Damien was never a genius in the literal sense. He started out at the bottom of the intelligence spectrum. Putting it lightly, the teenage him was a supreme idiot.
So when he grew and started using his brain, he still didn't do it as well as others, which is what eventually led to his death.
He was lucky enough to have the strength to compensate for his dullness. If it wasn't for that strength, he probably would've died several times.
But, he still tried his best.
He still tried to strategize and put himself in a position where he could control events behind the scenes.
Only, this time, that was the wrong approach.
He was tired of it.