If I'm playing a wizard, was I inspired by Gandalf? Merlin? Harry Potter? Harry Dresden? The Gallant Jirayia? Sailor Moon? Can you say that I must have been unconciously influenced by Tolkien, when "magic" is such a common thread, and "magical old sage" as well?
Well if we're talking about D&D then if you're playing a wizard you're only allowed to be a Jack Vance character.
and Tolkien, I will give him this, he's definitely had more of a lasting impact than Jack Vance. I don't think I've ever seen Jack Vance mentioned in a context other than someone trying to explain where D&D's funky magic system comes from (or the related context of rattling off a laundry list of people who influenced Gary Gayax)