It can and it can't be. Let's take a look at a more universal role: Hamlet. Hamlet is a role we have seen on film many, many times (50 plus) and may reasonably expect to see again. Among others, it has been played by Lawrence Olivier, Kenneth Branagh, and Mel Gibson. I think comparing acting in a role like this may give a better sense of acting talent.
Times change as well. Buster Keaton was extremely popular is his own time but he was never thought of as anything more than just a "comic." It has only been lately that his genius as an actor and a director has come to be recognized.
Good thought. Can I advance David Tennant?