That's kind of the point.
If someone without a lot of skills is wasting his money on the lottery and that's bad, why is it ok to bet on college basketball? It's a zero-sum game.
Especially with this new model of "take my money, and sell my eyeballs". Old time bookmakers just took their vig, the corporate version wants you soul too (consume media = buy subscriptions + watch ads).
It's really an insidious business!