The Incredibles bothered me, too. Clearly, Syndrome was a villain and a killer, but I don't think the idea of not wanting other people to experience the joys they felt from being superheroes because they would feel less "special" was anything but selfish. Why couldn't -they- be satisfied with being "special" in the ways Dash's mom told him he was, whatever they are?
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I think you may be looking a bit too hard at Incredibles. Syndrome's over-all plan, the idea of giving superpowers to everyone, is obviously stupid because it would allow evil people the opportunity to be really evil. The "natural" heroes fight the "natural" villains; having powers available for purchase would upset this status quo and cause chaos. I get the feeling that, from an in-universe perspective, that was what all the heroes were freaking out about.
I wouldn't judge RedWall as a story on this, because this is a fantasy trope that predates it by several hundred years. Lord of the Rings, The Wizard of Oz, The Belgariad... the idea of an entire race of bloodthirsty savages is an old and tiresome one.
Kinda puts things in perspetive, don't it?