Three missionaries in Africa

Three missionaries are going to evangelize tribes in the deep jungle, where they heard dangerous tribes exist.
What had to happen happened, and they got caught by a warriors tribe. Everybody is killed except the missionaries and one native interpreter.
The tribe chief tells the first missionary:
"You have been considered by the mighty tribe of Koungata. Now you have to choose: Tounga, or death.
- Well, said the missionary, I don't know Tounga but anything is better than death! I choose Tounga.
- Very well! Tounga it is, then."
Then three huge warriors approach, bend the missionary over and have their way with him, brutally. The screams can be heard for a full hour.
Then it's the turn of the second missionary, who is deathly pale but still choose Tounga, and gets pounded by three new huge warriors.
When it's the turn of the third missionary, he just can't take it and says:
" I can't, this is too much, I'd rather die a martyr than suffer such indignity! I choose death!
- Very well, answers the chief, you chose death. You will have death, by Tounga !