Perhaps ignorance, but if I've read your stuff accurately, you care. Perhaps it's just a matter of narrowing things down to a few choice causes that you can make a tangible impact with. Often, these causes are local. Jumping at each crisis, while it feels fruitful, is unproductive and exhausting. In that way, it's worth choosing which fights you're going to take on, and which ones (while noble) are for someone else to champion.