But at the same time, the losses of poor people can be quite insignificant, because they gamble with very small amounts of money that are left after all their essential payments. A rich person can afford to gamble with much larger sums, and as a result, they can much more easily and quickly lose large amounts of money and suffer huge losses, which can lead to a faster development of addiction due to the desire to win back what was lost.
You are getting it wrong.
Most poor people gamble to earn, Most rich people gamble mostly for fun. The money may appear insignificant, but it's significant to a poor person by their standards same thing with rich people, you might think the amount is huge, but it is not that significant to them. Drake has lost over $8M, does he seem like a candidate of gambling addicition?