Damage Runes Way OP vs Defensive

Damage runes give you bonus damage based on your level, whereas the defensive runes scale with your bonus armor or MR as a %.

This is totally fucking stupid and backwards.

Damage dealers no longer need to worry about that one stat until later when they can rune for it. Why build attack speed if you get a shit ton per level? Can just get damage and that attack speed compliments your previous lack of speed so you're spiking even harder with a single item

Meanwhile, defensive runes rely on you needing an item before it gets more value. Scaling with % of bonus armor/MR so if you don't have that stat to begin with like if you got a ruby crystal before chain vest, that rune is doing absolutely nothing and continues to not scale with your leveling. Defensive runes will have more impact when you've stacked up more and more items into the late game, but guess what, at that point the damage dealers will already have armor or magic pen

When do bruisers or tanks power spike then?