Yes, in a way it's interesting that every language doesn't more forcibly require these two different cases to be disambiguated.
The varying power of language to express different concepts is a fascinating topic in general. Two of my favorite sci-fi books on this topic are "Babel-17" and "The Languages of Pao". They both explore theoretical advantages and disadvantages that might impact human thought based on the languages used by the speaker. They're also just fun reads, of course :-)