You have to remember that when Star Wars was made, NOBODY wanted to do it.
Alec was not as big as he was back in the day and took the role thinking it would be a forgotten little money maker.
Remember, he came from a lavish and respectable background. Lawrence of Arabia, Doctor Zhivago, Great Expectations.
But cinema was changing. The science fiction he came to know was a thing of the past. He did not foresee where film was going which is why he could not take it seriously. Even when filming Star Wars, Lucas stated his frustration in getting the cast to act seriously because they thought it was silly. They ultimately felt it would end up being another 50's sci-fi bomb.
Of course, to his last day, his personal feelings never really changed, I guess. But who do we love? The actor or the character?
Now should we get back on topic?