The measure of a successful leader lies in whether his subordinates are willing to take a bullet for him.
When many bosses face great adversity, their followers scatter like monkeys when a tree falls. Forget taking a bullet; not being stabbed in the back by them is already considered an act of profound loyalty.
Of course, there's a shortcut to this; to put it in advertising terms:
Want to quickly become a competent and successful boss?
Then what are you waiting for?
Find yourself a subordinate with vampire lineage!
Zheng Fan felt he had achieved this all in one step.
A Ming had willingly shielded him. Of course, perhaps because A Ming himself was a vampire, he knew he wouldn't die. Zheng Fan knew this too, so the 'dramatic impact' of a subordinate taking a bullet for his boss felt somewhat diminished.