Right, so if your player has a powerful character, but is also a lurching moron, that should have no impact on in-game outcomes whatsoever? What you appear to be arguing is that player skill has no influence on how combat (and possibly other game aspects) is determined in a "true" RPG, and frankly I'd have to say that's rather absurd. Taking Fallout as an example, if you've got a great character but have pitiful understanding of its combat mechanics, you will die; conversely, if you're good at Fallout then a weak low-level character can do great things in combat. If statistics are going to determine everything then the only solution would is to remove player interaction from combat altogether, and that certainly wouldn't make a great RPG, nor would a game in which every single action and outcome is determined by your statistics. Should I have to do an agility check every time I take a step so that I don't trip? Obviously not.