the FFXI community has a way of taking jobs in different directions from what the devs had in mind. NIN and SAM are the two biggest examples. Nin was made to be a support type DD with enfeebs and the ability to make blm nukes stronger by lowering resistance. Sams were intended to be the 3rd tank job (War and Pld being first 2), if you don't believe this, just look at their AF, along with war and pld has the most Enmity+ on it. What happened was that we caught onto the fact that by spamming utsu and burning tools like no tomorrow nin could tank, and the high spike damage that sam used to maintain hate could be manipulated into heavy DD. SE even tried to make sam into a better tank with seigan+third eye buff, but the DD mentality of the job has kept it off the official tank jobs list.
My brother is an Emo-DRK, I am a kind PLD.
Monks do it with their hands.
Scholars do it in the classroom.
Puppetmasters do it with dolls.
Ninjas do it and then disappear.
Thieves do it then run away.