Do you not understand that under the category of "extreme" is "extremely good"?
Moderation is the mixing of poison and food..
Moderation is making a dam only moderately strong.
Moderation is a 747 pilot who's only moderately sober.
Drinking Alcohol (a poison) with dinner is moderation.
Building a dam moderately strong to specifications and not ruin the surrounding area due to over engineer is considered appropriate..
Moderately sober 747 pilot, that would be a step up for the normally drunk pilot, right?