IT all depends. I do blame others.
When they do stupid shit like: running in 1 by 1. Not change hero while they are hard counter, no one go healer or tank ( i usually take the other one), setting up as bastion in the middle of the road, keep firing on a deflecting genji, 5 people going after 1 tracer to leave me vs 5 enemy on the cap point etc.
4 gold means shit if you loose. And even playing the objective its easy to get 4 or 5 gold. But allot of noobs and idiots play quick play to. I can stay near objective get 4 or 5 gold as tank and still can not say they played bad.