Comment below rating threshold, click here to show it.
Or heroes need to be closer to capture a point. Outside of the first ~2 mins of the game, I find towers to be largely ignorable. Their range extends just outside of the lil platform they are on, meaning champions can start to capture them afore they even get to fire a shot. The only time they do anything is if an enemy is dumb enough to fight on the capture spot, but since you don't actually have to be on the spot to capture it, this should almost never happen.
I'd like to see towers have enough range to get 1 shot off before they can be captured, although I can see how this might encourage turtelling play since it would be easier to defend, so maybe it is intentional that the tower's role is so negligible.