Only a Republican could call a man making more than a quarter-million dollars per year "Joe the Plumber."
By this logic, Wayne Huizenga is a garbage man. George Bush is a roughneck. Bill Gates is a code jockey. Poor ol' Ray Kroc spent his life asking "fries with that?"
No, I'm afraid you don't get to claim to be an average joe just because there's some grit involved in the business you own: your employees' sweat is not your own.