If the game goes on long enough, any gold lead you have, means nothing. At a certain point in time, people will have their items, and nothing but elixirs to spend their gold on, unless they sell and buy different items to swap out. If you let the game drag on, rather than playing for objectives(turrets, inhibitors, nexus) because you want to pad your stats/kill score, then eventually, it'll bite you on the ass, and you'll get what's coming to you. Because then, the grey screen waiting rooms become massive. Saw a recent LPL game, where RNG was getting their shit shoved in, but they hung on until the magical team fight, and NaMei got a pentakill to win the game.