I think some people might think I'm arrogant, but the thing is, there are so many things I'm not actually sure about. And I'm actually ok with admitting that much of the time, except for one thing.... if you express doubt, too many people take that to mean you have no clue of what you're talking about, and dismiss you entirely.
I find that I get better results if I fake certainty. Very few people will take the time to actually think about what I'm saying, and accept or dismiss it based on the contents. People seem to be more susceptible to my tone, and what they think that says about me. So sometimes, I will phrase things in such a way that makes me sound more certain than I actually am.
Yes, it's fake Fe crap, but I'd rather do that than bitch about how everyone dismisses everything I say without even thinking about it. Which would be the alternative for me.
It's less about being threatened by the idea of being wrong as it is loathing the idea of being written off entirely. I mean, I've noticed people get away with saying the dumbest shit, but people buy into it just because they said it confidently. That's really what's needed to sell something to a lot of people, just that confident attitude. It's kind of shocking how little attention people pay to the content.