I feel just the opposite, much more vulnerable in a campground (with it's assorted yahoos), and much safer out where nobody knows where I am.
I've never felt insecure out in the wilderness, and I've done a canoe trip into the BWCAW nearly every year since I was about 15, up until a couple years ago. I don't like campgrounds because of the lack of solitude. But I just don't have the energy to do that anymore. Fortunately, I've found a campground on the edge of the BWCAW, that has widely separated campsites on the water. They are the most beautiful campsites I've ever seen that I didn't have to paddle to. The ones that aren't designed for trailers/campers are separated from the access road a bit. I can car camp, and be comfortable, and still have a sufficient amount of solitude.