I don't know if there are big private lottery, but AFAIK and I witness in our country, all of the lottery business are owned by a government agency.
This is on my mind too as I know all big lotteries are owned by the government. That institution is one of the government's sources of income.
But in that case wherein a private lottery provides some assistance to the government, then a big help. It's something that, since there are lots of gamblers even during the pandemic, this line of business isn't really affected by the negative impacts of the pandemic. It's no doubt that gambling is one of the businesses that survives during the lockdown.
Advantage on that private lottery firm? A good advertisement plus who knows, they can turn that initiative into
"benefits and advantages" when they want something to the government in the future if anyone got the picture of what I mean.