Pardew is genuinely just a narcissist, he ticks all the boxes and therefore I believe he doesn't really realize he's out of his depth or being an asshole, he just thinks he's the greatest - which is jarring, frustrating and beyond annoying and narcissists shouldn't get to feed their ego at the cost of others.
All that said, Bruce is just a dumb out of his depth asshole who knows he's out of his depth and is squirming around to not get kicked off the boat and I hate his fucking face.
Both are shit, just different kinds of shit.