Well, sorting out system 1's inconsistencies can help one feel happier and more at peace with oneself. You can't achieve serenity just by giving in to all your impulses, because they contradict each other.
Sure, and I found that incredibly useful in my life as well - particularly, it helps to stop feeling bad about what's considered morally questionable, but doesn't in fact hurt anybody. But some people may go way over the top on that, and it may be useful to throttle down as well.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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