Having patience while gambling is a key factor to sustainable gambling in the long round and if you apply that patience with a working formula that limits and controls your entire gambling process that makes sense alot, since patience can be subjective sometimes which could drive a gambler into a wrong direction thinking and expecting what will never come through for them.
If you can control your patience, you are more likely able to control your emotion, are disciplined which are all neccessary things for your survival and success in life, not only in gambling. I see success in gambling is very hard and in my opinion, it does not need to be profit or become millionaire or billionaire through gambling. Success in gambling is ability to defend your initial gambling fund as best as possible.
If you can be disciplined, be patient, be emotional controlled, you are more likely to control your gambling activity and can have higher chance of protect your capital safely.