The Balance between Purpose and Awareness
From moment to moment those with the most purpose tend to win. Speed wins the race, power wins the battle. The egg favors the sperm that got there fastest, not the sperm that stopped to think.
However in the bigger picture, wisdom outlasts power. Awareness survives purpose. Evolution favors selectivity when mating. That being said, tacticians have no place in the front-lines and even the wisest general that chooses his battles with the most refined set of principles is lost if he cannot find purpose in the moment. War is not won by strategy alone but by the hearts of the men fighting each individual battle.
As awareness increases, purpose becomes less apprehensible. People become disillusioned to worldly values and get lost intellectualizing reality rather than living it. Or, on the flipside, people get so wound up in themselves and forget the larger game at work, forget that life is bigger than them. They get too caught up in purpose and lose their awareness.
My advice is understand your purpose as finite and limited; ultimately meaningless in an infinite universe. Use this awareness as a tool to find peace, but use the pursuit of your finite purpose as a tool to find happiness.