Your line of thinking hinges on an optimistic view: "As long as X doesn't happen, we're fine". But what will you do when X does happen? You'll be completely unprepared for it.
I prefer to take the "hope for the best, prepare for the worst" approach: if something bad were to happen, I would have a better chance of not being impacted.
No, my line of thinking is more like "If X happens, we're fucked regardless of whether we have privacy or not, so we need to focus on not letting X happen"
If an insane genocidal dictatorship comes to power, you will be impacted, unless you're on the side of the dictators.
I'll bet you top dollar that's not what Jennifer Lawrence is thinking right now. She's not thinking "It was inevitable that someone will get my photos from iCloud". Instead, she's thinking "I should have never put my photos on iCloud in the first place".
Hence the point of this thread: don't expose more information than you need to.
I prefer to take the "hope for the best, prepare for the worst" approach: if something bad were to happen, I would have a better chance of not being impacted.