I do not believe this, whether the rich take calculated risk or not it doesn't stop the fact that they can only win through luck as calculated risk doesn't guarantee winning in gambling. The only thing I know that is different between the way the rich and poor gambles is that the rich can decide to use big amount to gamble of one particular game but the poor will pick different games to gamble on since they don't have enough money to gamble like the rich.
No matter what your status is, I don't think you can outsmart gambling because everyone is praying for luck. After all, the only thing that people count on is luck, because when you gamble a lot, these are things that people have understood a long time ago. And just that sometimes the rich have leverage because they have enough resources to gamble, so one of the main challenges is the resources. And in sports, they can select a few games and bet with a good amount. so there is more for people to understand even before they start gambling.