I don't have a source to back this up directly at the moment, so I'll get back to you, but there's a similar issue in the mobile and F2P gaming department where almost the entire industry is propped up by an incredibly small group of mostly disadvantaged, and (if I'm recalling the article correctly) addiction-prone personalities. Nobody talks about the very real issue of preying on these people through literal psychological gaming, because fixing the problem would cause the entire market to implode under the weight of its own instability. I'm not saying it's useful as a direct analogy to the lottery system, but I find it curious how many systems we put in place societally that we know are intrinsically abusive but don't give enough of a shit about to fix on a fundamental level.