They have in commom one important feature. They did not belong to Kings, Sheikhs or Princes. They belonged to people like you and me. The owners of these Millionaire racehorses weren't just lucky. They were relying on expert advice to guide them through the maze of the marketplace.
Expertise is needed to successfully maneuver and finish.
Knowledge and skill are critical to selection and payoff. Luck can be considered a factor the first time. Coincidence could be the answer the second. But when success is repeated again and again you know something. You know the way.