I wouldn't say that there's something wrong with the community. Just something that appeals to short-sighted players who love the rush of being OP instantly, usually younger ones. You're unlikely to find many mature players on those "OP Prison" servers. It's just not appealing to them. (And me as well)
Plus the MC community is huge and very diverse. One bad apple doesn't ruin the entire batch, it just gives them a bad smell lol.
But I agree and I hope that a MC counterculture shows it's face and shows people what quality looks like.
Don't worry Minecraft did popularize buying an unfinished game and then never getting a finished product.