Gambling has a similar distribution to most markets. 20% of the gamblers generate 80% of the gambling revenue. Most people that gamble don’t ruin their life. Most people that drink don’t ruin their life/health.

There’s some ethical concerns where the gaming industry (and liquor industry) will market more towards problem users or in ways to generate more problem users, but buying $20/lotto tickets a month isn’t a guaranteed start of a problem, nor is having wine alone sometimes.