I have to ask, for all those who say anything commissioned is not real art, or at least below art done for one's self, how about Michelangelo? Most of his work was commissioned by the Catholic Church.
Is the ceiling of the Sistine Chapel less good and not worthy of praise because it was commissioned?
One could even argue that David, his most famous personal project, was a big marketing scheme. A statue that was sure to stir the pot (nudity was such taboo then) carved in secret and unveiled, with no fanfare, overnight in a major town square so the first thing everyone would see and talk about that day was David. Not to mention, using a biblical character, was an obvious nod to the largest employer of the time, which he probably already had developed some connections with. You would have to be a fool to think Michelangelo did not use David to play the game.