I found
this thread on reddit interesting. Basically a guy that only plays Torb, no matter what, hit rank 80. But there's a post that looked into his profile more, specifically compared to other high ranks, and he seems to have a much worse win rate on average (~10% lower) compared to the people around him. It made it seem like he got a huge benefit from getting contributions to fight with essentially an aimbot turret even if he didn't actually help that much, which would make him lose a lot less points than other players while making his wins climb a lot.
Which is fucking stupid.
Especially if the inverse is really happening with supports.