I've noticed this as well, The only reason why these players do this is:
"I'm assuming"
Me.) I Would gladly help any member new, old or elitist. Odin /Poke me! ^^b
1.) Cause they joined the game under RL friends and those friends PL'ed them all the way up, Had them leech w/in Abyssea, Those RL friends thought they we're doing good, But the lack of having their friend that their PL'in, Having let them leech not teaching them the right tools they need to play the game as to make new friends along the way.
2.) Joining a new MMO after leaving one can that a toll on a person,
<Stop for a min and think back when you 1st logged in> You didn't know anything about this MMO as to what you heard or read about outside the game, Being new some players can come off abit hard, I've done it..

"Hard as to want everything right away"
3.) All members play at a totally different pace, Some think that FFXI is just Leveling to cap and get the best gear. Me I personally think its more then just that, Lack of a better word. "I do it all"?
4.) Some members don't realize that this MMO is Global which can in time be the BIG issue, not able to explain yourself clearly, That person your telling would do that "goodbye byebye good..bye byebye.... bye"
Edit: 5.) Sad to say, There are "Some" Members out there that don't play well w/ others, and just like to keep to themselves. Also there are Linkshells that only work w/in and just out for themselves.
"This would fall into "Some" elitist members"