Massive Balancing Issue In Game: Overall Player Experience

I've been realizing lately that, while there are measures in place to keep teams balanced in game by looking at each player's individual level (1-30), there seems to be nothing to balance teams by overall experience level. Mainly, this pertains to the amount of games won by each player. Anytime I play a game where the games won by one team's players vastly out number the games won by the other team's players, the games always end in favor of the more experienced players. Recently I was in a game where the games won by one team (A) totaled to 1,011, and the other team (B) had 2,928. One member of team B had a total of 1,105, making him more experienced then the entirety of team A. The game was ended by team A's surrender at 23:56. The scores; A with 10/26/6 & B with 26/10/33. I was wondering if this tends to happen to much other people, and hoping that Riot would address this balancing issue if it's causing unfair games for many players.