> if someone believes something incorrect - or worse - then they need to be corrected

One discovery I've made is that they really don't. Nothing terrible happens if you don't correct people.

You can really just accept that people have some flaws and appreciate their positive sides!

Agreed. I just let people talk and have for many years now, no matter how well I know the person. Someone might start talking about chem trails or maybe another conspiracy and I always entertain them for the most part. Here and there I might do a "have you thought about it this way, or that?", but other than that, there isn't much reason to argue/debate unless it's at work or something that actually matters in the grand scheme of things.