I don't really care that the data can be collated. I don't really care about the conclusions drawn. It's not just a "oh I haven't done anything wrong, why should I care" argument, it's past that. I couldn't care less that Facebook, the US government, or some intruder knows I went to Whistler last weekend with my family, and that I took a few photos at Squamish. That data isn't really useful in any context. Similarly, I don't care if they know what events I attend, or who I'm friends with. It just doesn't bother me. Does that make me less intelligent? I would say of course not. If I was ignorant about this information, sure. But knowing the information and simply deciding it's not worth it to care about who sees these trivial bits of data about me shouldn't be called "less intelligent".
As someone else posted below, I value my social life and being able to quickly and easily interact with family and friends from around the world more than the privacy I could attain by not posting these random bits and bobs about my life.