I had a friend growing up, well actually was friends with 2 brothers. Their family was about 8 children and mom and dad kept trying to grow it. The mother was the classic case for what you stated. Narcissistic. Really bad. So bad, she would constantly show up to church late, like 15-20 minutes late and then take a pew at the front of the church. Her sons and daughters also served as altar boys/girls and when it was their turn to serve, she would still be late. Imagine the embarrassment these kids felt having to go take your position at the front of the church after mass had already begun. It was quite a spectacle. Not sure why the church put up with it.
I hate lateness also... but 8 kids? I'm surprised she could even leave the house... I think if someone on my team had 8 kids I would understand if they were a little late.