And of course, the reality is largely going to be somewhere in the middle. Which is why no matter what way a recently living person who becomes a myth really is, there will be varying opinions. Just like any of us. We all have our good days and bad days - though admittedly, some have much worse or best days than the average folk.
As much as I am no George Lucas apologist, though - I do have to say - the man was generous financially, to a lot of folks. He didn't have to give the main Star Wars actors points (officially, he bought their likeness rights with them, but they came out on the much better end of it, they and their heirs will have a piece of Star Wars in perpetuity), nor the key crew members he later gave 1/4 points to (and even a 1/4 point of Star Wars is "never work again" money). He is also known to be quite charitable.
He can't write his way out of a paper bag, and his directing skills seem to inexplicably bring the worst performances out of otherwise capable to excellent actors while at the same time elevating trash cans to compelling characters, but one thing I've never heard about the guy is that he was stingy or anything other than a generally good person. I think much the same of Walt Disney, though the man obviously had flaws and didn't always act the way he should have toward those that helped build his success.
As to Jobs...shiver...Ebenezer Scrooge would be a worthy Monopoly opponent for him.