And to be fair, $600k is pretty small in a first-world country imo.
on the one hand, if you suddenly help other people, its like showing you have a lot of money and other people will definitely find out where the money comes from and how much. to make it worse, people are showing up asking for help and its also vulnerable that bad people are coming to take his money.
the most important thing here is that even if you get any amount of winnings at gambling, its better to use it yourself or anonymously without having to show it to other people for your own safety and comfort.