Unless the quality of life is reduced because they have a false belief that it would increase, and I can prove to a sufficient degree that that belief is false, I'd say "it's pretty much never wrong". Is it really wrong to get paid for constructing a church if I think organized religion makes people worse off? And I certainly wouldn't want someone applying that principle to me, because I know how bad other people are determining what reduces the quality of my life. It's this logic which leads to large soda bans.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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