So, yesterday, I was fortunate to run a large chunk of Naxx in WoW. It's outdated content, as far as numbers go. Gear and player power have inflated a bit since it was revamped back in '08. But, the fights still have the same mechanics and the dungeon crawl experience is still fun.
The thing that I didn't realize until I stepped inside was that I was running with a bunch of people that usually farm the current raid content, dabbling in the hard modes. So, they had a substantial leg up on me as far as output goes. The kicker is: I had no meter addons installed, no way of measuring everyone's damage/healing, etc. So, while I couldn't quantify it exactly, they probably eclipsed me in terms of death-dealing.
Things died just the same. Who did the most damage didn't matter, from where I was sitting...we all hit the bad things and said baddies died...so who cares?
Why should we give a crap about these little graphs o' damage/heals?