Question for RIOT (silver player)

Why have unkillable 1v1 champions like in a game that puts you with randoms and where your jungler might or might not gank because -X- reason. I have had many games where the enemy champion (one of the listed above) is pushing lane like a mad man yet my jungler just ignores it. How many times do I have to ping for help and get such an easy kill?

I perfectly understand that these champions have very low movility and they are almost sitting ducks when pushing a lane and can be easly ganked and killed when doing so, BUT in such a current unhealthy state of the game not only in terms of balance but in terms of game understanding by some players this type of champions often get away with pushing a lane hard and denying you farm and getting your tower low.

In high level play (term commonly used by RIOT when in comes to balance) this problem is basicaly non existent since junglers do know the game well and players using this type of champions also know well not to push hard even when warded.

But why is it that RIOT only seems to care how a champion is balanced in high elo but completely ingores if its healthy for low elo play, if the champion is going to be OP just because in low elo junglers simply dont gank even when a big sign that says EASY KILL is on top of the enemy then at least make them able to kill 1v1 when they make a mistake like missing a skill shot.

Thanks.