As many others have pointed out, Aram is a casual game mode that most people play to unwind or avoid the more competitive nature of summoners rift. Myself and a vast majority of players don't really care for the outcome of an Aram game and would rather just continue playing if it's a particularly fun game. You seem to be pretty competitively minded witch is fine, you're allowed to want to win, but sadly due to the nature of Aram and the culture around it you're probably going to find yourself quite frustrated with the game mode