[mention]Mr. Giraffe[/mention]
To an extent. When religion was far more prevalent, it lead to a stronger moral code as the fear of a power greater than any human was a useful way to avoid immorality from becoming too widespread. You need only look at modern western society and the prevalence of Social Justice to see what happens when that strength is lost.
I wouldn't say it's of the utmost importance, as it's best to separate church and state on several matters and following a religious text too dogmatically can lead to several societal flaws, but placing some of the basic tenants as a strong moral code is a highly useful way of implementing a set of standard values to benefit social stability.
[mention]Pocket-Gog~[/mention]
Ito is OK, or good as far as horror writers go. The only work I read of his was Uzumaki, hailed as his best work, though even that just seemed to have creative visuals and was otherwise just a tribute to Lovecraft. I wouldn't say horror is a genre that you're able to get a lot of depth out of unless it's complimented with something else, as a lot of horror relies too much on spectacle and atmosphere over plot and character writing. Ito does this to an extent with a lot of his praise coming from the atmosphere, visuals and creative ideas, whilst a lot of his longer stories can feel disjointed at points and the characters tend to only be memorable for how the plot treats them or the imagery attached to them. Still, Junji Ito at least understands the elements of the visual horror genre to make his work good for what it is, though no masterpieces by any means.