(spoilers for Dune, but... it is Dune.)
There's sequence in the middle of Dune where a Fremen named Jamis, their resident angry dude, challenges Paul to a duel to the death. Paul wins, of course, and kills Jamis. What happens next is interesting.
I expected the Fremen to remember Jamis poorly. The Fremen seemed big on prudence, strength, and combat. Jamis was foolish to challenge Paul and he lost. What's there to respect?
But at the funeral they're respectful of Jamis. He died testing Paul, making sure he was strong. Jamis died to make sure the Fremen stay strong. That's what the funeral reflect: Respect for the man who is actually in the arena for his service—whatever his motives might have been and even though he might have been a fool.
I find that idea interesting—that a challenge can function, independent of which combatant wins, to benefit people not involved in it. That others can be better off for such a challenge whoever wins.