Beltaurb: I find it curious that you found that theme in 3 and 3.5 to be such a burden. It is not reflected in the rules or the systems in any way; it's purely something that comes through in the writing and tidbits of DMing philosophy in the books. And I'd say that even those tidbits don't go nearly as far as you're describing. As long as your group doesn't demand such details, they can be completely ignored.
And if you have the sort of group that would demand such detail, they'll likely do it regardless of which system you're using.