The amount of resources you invest in something should be evaluated by its opportunity cost as well. When you spend $1 in something, you can get a significant Return on Investment, but the point is if there is another option that could lead to evenhigher returns.
If you put your energy and passion in something, it’s because you feel that it’s what you should do. Any time spent on things that don’t matter is waste. Avoid it.
Focus on what you love.