@nprofile1q... That you cannot think of another culture that does that says more about you than them.
Most cultures do a version of that, which is the same thing in reverse: we parade the bodies of fallen soldiers or VIPs with utmost pomp and ceremony. It says "this is the example by which we prove we're better than you", but of course we're FAR to civilized to say that out loud. We'll let the rest of the world infer that by... not treating anyone else the same way.
It's a very thin line between...