No, I don't think so. Because gambling is also very popular among poor countries. Moreover, I assume that poor gamblers have more incentive to play gambling in the hope of changing their financial situation.

Everyone is susceptible to addiction, regardless of the level of the economy in the country or the social status of the gambler. I also have an assumption that residents of some countries are more susceptible to the influence of gambling, because they have a "spirit of excitement". For example, I heard that the Chinese are very passionate gamblers. I don't know what exactly this is connected with, but it can't be said that all Chinese have a very large salary (to be honest, some work almost for a "plate of rice"), and there is nothing to talk about state support at all, because gambling is prohibited in China (with the exception of several regions). As you can see, this doesn't prevent the Chinese from being inveterate gamblers.

Correct me, residents of the Celestial Empire, if I'm wrong.