That the captain allowed all of this to happen on his aircraft is despicable. He's got no backbone. If he's so worried about his job and KAL's threats to send pilots "back to home town" that he permits this behavior, then he's a Judas. I've had important people ejected off of my planes for less, and stayed employed.
And the purser? No courage either. You can look at such a job as a gift, or you can see it as an earned responsibility. If you see it as responsibility then you do the right thing and stand on your feet like an adult. When company stooges come to your home to manipulate, kindly tell them to "get the hell out of my building."