Well... if this is true, and his friend was the healer, then I'm willing to bet the other dps and the healer were voting for a full clear. Since your vote doesn't count, if you're truly playing the middle man and not wanting to just take the easy way out, then that is your friend's vote against the two others who probably want a full clear. However, given your strong opinion of your superiority in all things tank, I highly doubt you took the middle man approach. First, don't play the "holier than thou" card when you so obviously don't know how to handle a situation like this properly to prevent it from spiraling out of control. Second, don't pretend to be an expert on at a role when your expertise is only limited to one of the two jobs of that role. (Yes, I know how to use the search function on The Lodestone unlike some) Third, the decision in a dungeon to do a full clear or a fast clear should be left up to the players present who are not level 50 yet. A clear bias towards laziness resides with those that have already maxed level, and if they are in a low level dungeon for any reason, it doesn't take priority over someone who is there for leveling. Just because you or your friend don't want to spend an extra 5 minutes in content you're being level synced to doesn't mean that someone else should have to skip content in the dungeon for your impatient benefits. Doing it for relic? Don't care. Doing it for Zodiac drop? Don't care. Doing it because you were an idiot while leveling and you skipped it? Don't care. They are there to level, they are further behind, and they need more help than your impatient entitled butt sitting on your high horse.
Before you get all pissy, yes, I'm a tank, yes I play Paladin and Warrior, along with all the other jobs. And yes, in any lower level content, I always ask the people who aren't at 50 yet if they would like a full clear. Him demanding you do a full clear is just evidence of more lazy and impatient tanks like yourself. Just because he was rude doesn't mean you should be the "rebel" which is just another way of saying you were just as rude. If you don't want to help out someone who is still leveling, then don't go into lower content. But if you do decide to darken the doorways of those dungeons with your stubborn attitude, then don't come here and whine about how you feel someone you deemed below you should bow to you as you condescend him and his healer friend. Perhaps if you were a little more cordial with them from the beginning, they would have listened to you when you asked for AOE. You seem more like Napoleon with a little man complex than really a leader, which is what you seem to think you are.
Being nice and friendly will get you a lot more respect than being brash and stubborn. Like a recent run in AV I had where we had a healer act much like you are when a dps asked for a full clear. I promised the DPS that due to time constraints (Because of all the fighting the DPS and healer were doing and the fact that I had to duo the first boss with just the healer with me because of the fighting) we would finish the dungeon ASAP and then I would go back and slaughter anything we skipped afterwards. Of course, the healer left, but I still made good on my promise and came out of it with respect and commendations from all three people because like a good leader, I tried my best to accommodate everyone. What you did was accommodate just your friend, when it was within your ability to make everyone happy. But because of your stubborn attitude, you don't see that. So, you come here and rage about entitled dps when it's actually you who needs to come down a peg. A little humility will take you much further than your attitude has gotten you so far.