No. Look at the amount of damage a mage does.
At levels 50+ Mages are pointless, and cannot deal ANY damage. conjuration, destruction or other.
At levels 50+ Warriors are getting much stronger, and deal massive damage
At levels 50+ Rogues are getting...stealthier...and deal massive damage with sneak attacks.
Mages can survive on 50+ lvls as well. It just isnt as easy as people using melee, and certainly not people on melee that are exploiting the crafting system.
So, again, what is the problem?
If it is too easy with melee (on master), then start by not using the crafting system to become overpowered. If that isnt enough then just use a console command to lower your damage output or whatever so the game becomes appropriately challenging again.
If it is too difficult as a mage just turn down the difficulty.
Problem solved. There is no problem here.