Whoah.. before we go galloping off with those assumptions, let me say up front that I've used compasses on land and water for decades, and I'm more than willing to spend for "serious" hand-bearing compasses in either venue- I own several. I'm not about to use a lighter-compass for orienteering, reverse-azimuth piloting on the water, or calling in artillery or air strikes.
This was more in the lines of an attempt to add a compass for EDC, mostly for city carry, mostly for orienting myself when coming out of strange subway stations, etc. Of course, there's always the possibility of emergency use, but still, in the city, it's pretty much a matter of cardinal points. I'd like to have something on my person, but, as was said in another recent thread, I'm reluctant to add yet another object to EDC. I already carry a lighter (even though I don't smoke) so it seemed a natural.