I get banned for getting blamed

Now hear me out, i was in a game against a proxy singed and a teemo mid, i was top lane malz and im like ok this is gunna suck but i think we will do ok, i'm keeping up wit h the singed but my other lanes are falling behind, when they are at out inhib i go back to help and insta die, than they blame me for not helping, what could i do against a 12/1 siver and a fed teemo mid. im probably gunna get a ban, but how dose that make me worth baning. i trying to keep singed from getting ahead and stuff and wanted to help my team, i know its a team game but i took ignite against him thinking i could kill him early and get ahead.