The data would beg to differ. You have to keep in mind the demographic makeup of the US. More than half of Americans have less than $1,000 in savings - total. [1] Only 15% of Americans have more than $10k saved. Now take that $80 billion figure from the lottery. There are currently about 245 million adults in the US. About 49% of Americans play state lotteries. [2] Now let's do the math. That's $80.55 billion / (245 million * 0.49) = $671 spent on lotteries on average!! It is very safe to say that there are
alot of people spending all, or near all, of what could be their life savings on lottery tickets.
Lottery tickets are almost always negative expected value which means you're basically lighting money on fire, and governments worldwide love them. More generally the US government acts as an oligarchy. Government self interest, followed by special interests are what generally drive government action. Public utility (and opinion) play a very minor role. And yes, I even have a source for this as well as I understand this is not what many people want to believe. [3]
[1] - https://www.fool.com/investing/2016/09/25/how-much-does-the-...
[2] - http://news.gallup.com/poll/193874/half-americans-play-state...
[3] - http://www.princeton.edu/~mgilens/Gilens%20homepage%20materi...