Efficiency of cubing with respect to DPM

Well suppose you have a hero with 4k str, a nl with 4k luk, db with 4k luk and say a mechanics with 4k dex.

Assuming they have reached the optimum weapon attack possible for their class,

then mechanics would deal a higher dmg generally than hero,nl and db, if we are comparing those 4k primary stats.

My post didn't exclude that. I said:

Well all (classes/weapons) have different multipliers, their ranges will differ. This is (or should be) balanced by giving skills with more % to the classes with a lesser range multiplier.

There's 4 things that define your damage:
1) Main stat
2) Attack
3) Dmg multiplier / type weapon used
4) Skill %

1 and 2 is the same for all classes (kinda, thieves need more dex etc). And 3 and 4 are tweaked to make all classes balanced, for example mages have a low multiplier, so they have high skill %. Etc.

Potentials only add to 1 and 2 who are used by all classes equally, so they are just. Imagine +100% skill dmg for BM's: LOL