So why the self-deception? It’s partly because all this influence is happening unconsciously. We literally aren’t aware that we are being influenced. And it’s also partly because we don’t like to think of ourselves as so easily swayed, or so “gullible”. To be gullible is to not be in control, and our old brain, the part of our brain that is concerned with survival, always wants us to be in control.

https://www.blog.theteamw.com/2010/08/18/100-things-you-should-know-about-people-40-youre-easily-influenced-but-im-not/