This Game Promotes A Lack of Empathy
In real life, if someone tripped, got hurt or ran into financial trouble you would lend them a helping hand and if that's too much trouble, be extra sensitive around them.
However, in League, if someone is a consistent screw up then its time to celebrate and feast on them.
If they are on the enemy team then you can build a whole literal economy preying on them. And you SHOULD. Its viewed as dumb if you don't. Do you want to make LP or not?
If they are on your team, then WHOORAY because now you can focus on blaming/crucifying them and protect your own ego 100%. The loss is no longer your fault.
...
Those who climb very fast in League have one thing in common; they are exceptionally skilled at preying on the mistakes/weaknesses of other players. They are like professional pickpockets/con artists... they zero in on the mark and ask to themselves... "1. Who is the weakest person? 2. What is their biggest weakness and how do I make $$$$ from it?"
Diamonds are better then Plats at doing this (who are better than Golds and so forth). Its all about looking for weakness and jumping on it in a way that's unstoppable, consistent, and psychologically destructive.
This is what the game is fundamentally about.
How can I take advantage of noobs to further my own gains? How can I find a way to make the ennemy team divided? Turn amongst themselves? Blame each other and go up in flames? How do I profit from the incompetence of others?
The antiques of Smurfs in a Silver-Bronze game would put Disney/Soap Opera villains to shame.