Uh it's races to. If your an orc then you probally wnat willpower and strength up. But with a elf, Human etc.. you meant want that up more then a orc persay.
Its the attributes that matter for a class, not the race. Though they do have different max and min values, its still pretty much the same. Race isn't a big deal. Else all magicians would be elves, and all fighters orc.
sure not.... if you don't want extrem abilitys you can play every class in every race, a fast and agil halfling can be a much better fighter as an slow brutal orc..... and a strong orc can fram a much greater land as a weak halfling....