Since when has talent been involved in being a "great artist" (well in recent years anyway).
Talentless people like Tracy Emin seem to make a fortune (and get a lot of fame) by exploiting the confused world of "modern art" (which has a lot of the emporers new clothes about it).
A visit to the Tate Modern in London will convince you that many "modern artisits" have little or no real talent, and a broom leaning against the wall left there by a cleaner could easily be mistaken for a piece of modern art.
I went there a year or so back and went into one small gallery where it looked like they had the decorators in, with a step ladder and a trestle table covered in paint pots, paint brushes, empty cups, ash trays, old newspapers etc.
Only when i saw one of the gallery caretakers sitting on a chair next to it did I realise it was a piece of "art".