Utilitarianism
To think of utility as supreme, to pursue and have interest in skills, occupations even hobbies for their mere effectiveness , stripping away the joy, not deliberately but because pursuing the mastery of said skills or hobbies is more relevant . Here ,knowing they can be balanced somehow doesn't prove as a solution. It happens I want to master drawing because it would come handy if one wants to draw a person's face only from their imagination (like a forensic artist) or to recreate a sence of a visited place , chess as means to sharpen pattern-recognition . language learning (although enjoyed as an activity ) the vast verbal prowess and the ability to read literature in original text, to allow for different ways of thought-formation, training so that one's standards in martial arts , calisthenics are at least more than enough. All this is always in mind to be attained .Anything really those were just examples. utilitarian in everything , almost like a trap of objectivity.