Niko_JimsIt depends on who you are playing with, though the question is a bit oddly worded. If I do a clear for the first time with my guild, that's a good feeling because I not only helped myself, but my team as well. Same thing with people who main support classes, they get enjoyment from helping as well as doing their own job (for the most part, at least/hopefully).
At least that's how I took the question.
But then there's other questions later that ask about cooperative stuff