Horrendous lack of respect
For a long time many professionals believed narcissists had to present a confident front because they were inwardly insecure. (Sadly, some professionals still believe this!) They thought that admitting shortcomings, error, or fault was simply too devastating to their “fragile” egos. So, they simply had to be right. To admit frailty, weakness, or any type of vulnerability would crush what little self-esteem they actually had. And for a small minority of narcissists, there actually might be some truth to a few of these notions. But not for most! (See also: Character Disturbance.)
Most of the time, the issue comes down to the horrendous lack of respect the grandiose among us have for any “higher power.” And truth, you see, is the ulimate higher power. If we reckon with it honestly, it has the power to grow us and set us truly free. But folks who are character disturbed take issue with the truth. Some simply deny it. Others are at war with it. Still others place themselves above it. For the most ardent narcissists, truth is what they say it is. They know they’re not always right. But to acknowledge that would be tantamount to removing themselves from the perch they’re absolutely determined to occupy. Dethroning themselves is not something narcissists do willingly. They refuse to even recognize, let alone voluntarily subordinate themselves to, any higher power.