I had to vote "no" because I know what you meant with the poll. Seeing somebody else with some piece of gear I do not have or am incapable of getting has never bothered me in a video game.
WITH THAT SAID...
I ALWAYS get excited when I see a fireteam member get something cool. Even if I never get that 'object', I'm always happy for the other person.
Even if I'm running strikes with randoms and see something drop for one of them, I hope it is something they really want. :)
It's just the way I am.