Ah, but my friend! There's so much more to be had. This game is miniature war. Troop movements, resource allocations, intelligence and surveillance. There's so much more to learn than just mastering the mechanics of certain champions. To intricately understand what the team needs to do when, who needs to be where, and to manage these things with a perfect understanding of the rhythms of the game and why everything needs to happen. That's where I'm headed--strategic mastery of the game. For me, it's not about the micro aspect. I play this game for the macro.
When certain champions are flat-out statistical outliers on the upper end, they create an unnecessary imbalance that kind of ruins most meaningful macro decisions. More often than not, they ruin meaningful micro decisions too (ie "no counterplay"). Laning against these champions is a chore, too, and I love the laning phase. There's a lot more brain and slow play involved in laning phase, as opposed to the snap-second twitch reactions of teamfights (which have their own intricacies and nuances, of course; I just like laning better).
I'm not belittling people who are competitive per se; I just dislike people who would rather win a crappy game than play a good game and take a chance on losing. There's a clear difference between, "I am competitive" and "I won't fight fair, and anyone who doesn't use the same tricks is stupid."
Take fencing, for example. I love the sport. I fence foil. Now imagine someone walked into my fencing club with a very, very long rapier and declared that they could score points not only with thrusts, but also with slashes. They then say that anyone who doesn't subscribe to their style of rapier doesn't deserve to win. But I've been a foil fencer all my career; I want to get better at fencing foil. I don't want some OP rapier to come and completely disrupt the game. The rapier fencer isn't learning anything; the foil fencers he's beating certainly aren't learning much except that longer reach + alternate scoring paths is hard to beat. Do you see what I mean now?