The best players in the world are cashing a little over 20% of the time. What's truly important is maximizing opportunities. Putting yourself in a position to win is much more important than grinding out min cashes and praying for some luck. Don't hesitate to play big pots in the middle stages of tournaments.
I really care about making the best decision, not even for the short-term results because in the end I want my decision-making to lead to profit and increase my bankroll.
Apart from growing your bank roll, results is important because it helps to boost your confidence and morale. In poker, your emotional response plays a critical role in your playing style and your winning mentality.