It occurred to me that you probably need an healthy amount of "carelessness" at work. You need to be interested enough to be happy and efficient, but disinterested enough so you don't care too much about decisions you don't like. And scratch your own itches during your leisure time if needed. And that last thing means you need to have enough time for you.

My work should be something as meaningful as possible to me and in accordance to my values. If I work on something meaningless to me or goes against my value, I'll probably burn out fast.

And yes, I work where I work because I need money. Otherwise I'd work on something that is even closer to what I want to do / solve.