Most rich people don't believe in luck. They believe they have to take calculated risk and they don't see gambling as major area for taking that risk. They can invest in bitcoin but may not give in to gambling. At least in Nigeria, I don't see most rich people gambling as source of income. If you see gambling as source of income then you will become an addict.

Another observation is the rich gamble reasonably and with the money that they can afford to let go and not chase back what they have lost. If you chase for your loses then you are likely to be an addict.