That father should maybe learn about what missionaries actually are then, the idiot. If the apostles got skinned, boiled alive, burned and crucified–not to mention the thousands of years of that happening since by Synagogues, Inquisitions, Jihads, Socialists, Commies, and random thuggins–then you can't be surprised if your missionary son meets the same end.
How is being "witty" a virtue? Do you even know what a virtue is? Not a virtue. Not a virtue. Not a virtue in itself. Courage is but that includes confidence. You can't be both spineless and brave.
These are virtues. To protect the weak, to gently treat the feeble, etc. all stem from such virtues.