It's usually during one of these breaking points that the kid finally gets pissed off enough to unleash that phrase: "You're only making me do the dishes because you hate doing them yourself!" As parents, our first instinct is to fall back on the explanations in the first paragraph. But by the time the kid is heated enough to bring it up, we might as well just be reading the ingredients from the back of a stick of deodorant.
"Son, this is what we call a 'Minnesota lecture.'"
The truth is that if you take away those core reasons for the tasks, yes, we do assign them in part according to suck levels. I hate doing laundry, but I hate it a whole lot less than dishes. Fortunately for me, I have earned the privilege as a parent to roll the shit work downhill. Unfortunately for the kids, they're standing at the bottom, bracing themselves for the quickly approaching turd ball.
Now that's not to say that I can just pass it off and say over my middle finger, "Deal with it, fucko! I bathe in your anguish!" I have a responsibility to make sure I'm not overloading them, just like a good manager should know when to shuffle around burnt-out employees until they get their second wind. Just having a change of pace can sometimes be enough to ease the monotony.