A hermit from a remote land with some sense of "mystical" wisdom might say the following (humor intended :):
Dichotomies that we face in life as in between desire vs virtue, happiness vs morality, individual vs collective good, — and we can go further on to include political dichotomies such as freedom vs rule of law, etc... — are all basically accidents of natural existence. In other words the principle of conflict and dichotomy is inherent in nature. So down from the microscopic level all the way to communal life of living organisms and up to the highest echelons of human politics, conflict is pervasive in nature!
From this it follows that so long as one's values are confined to nature one is destined to face all sorts of dilemmas in life where one can't gain something without losing something else. Constant dissatisfaction and stress, or a not-so-better (if not worse) alternative, that is, self-deluded happiness, or even worse an arrogant life of trying to achieve maximum good at the cost of others would be the inevitable outcome!
So what would be the way to freedom from this inherently dichotomic existence: the mystic would have it that it is for one to establish "an inner connection" (and stronger and stronger levels of that connection) to higher planes of existence where, quite interestingly, unity of opposites is possible!
It does sound so impressive of a theory and of a promise, but as with any other start-up in the natural world, there are costs and challenges! Realizing this lofty state would itself involve, on the negative side, relinquishing certain "mundane" goods for embracing a path that leads to a superior good. On the positive side the path involves a period of spiritual exercise involving moderation of desires, meditation, prayer, supplication, moral discipline which all work towards realizing that higher existence by just striving for it and concentrating our mental energy on it!
It all may seem too much indeed, but the greater obstacle is that inner voice saying that all this can't be true! But chances of certified belief can come from delving into various spiritual traditions in world major religions. My personal favorite to recommend would be Sufi tradition in Islam!