"For What It's Worth", I'm really kind of surprised this is considered obscure. Buffalo Springfield was ground zero for CS&Y, Neil Young, Poco, Jim Messina, Richie Furay....Well, anyway, I apologize for the confusion.
Peace Offering:
Meh. I still call it "the ministry" out of habit. I never stop to consider the semantic implications. I'm sure there are lots of other non-cult words and phrases in our vocabularies that we never stop to analyse in-depth. I still call bandages "Band Aids" without much thought. I just don't worry about.