That guy who had the record for the highest points in chess, until this other guy reached higher. He quit chess in the 2000-s. He got beat by a powerful chess-playing supercomputer in the 1990's.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".