Why should it be the same?
One-Handed and Archery rely on skill level and damage perks as main sources of damage. That's because the base damage of weapons is low.
Destruction relies more on higher-level spells than skill level and perks. That's because the base damage of spells is high.
Imagine this: Halve all damage bonuses from One-Handed skill tree, but instead double base damage of all weapons. Effect - you're doing same damage, but the skill "plays" differently, as you need to focus more on finding new weapons than simply increasing the skill with your old ones.
And this is exactly how Destruction was designed - since spells don't have upgrades like weapons do, there's really no problem in swapping them with new ones - so there's less focus on skill level, and more focus on getting new stronger spells.
Different? Yes. Worse? No. Just different.
Unfortunately the selection of spells is so limited at the moment that the melee equivalent would be like removing all weapons except dwarven swords and iron daggers.
They should just make novice/apprentice/adept/expert/master level versions of all spells, obviously excluding the lower ranks for spells starting at higher ranks.
This would work, the problem though is that you can't sell obsolete spells like you can obsolete weapons. Scaling would mean all of the spells in your spell list would be useful, rather than 80% of them being obsolete clutter.