I think lotto for the entire country should focus also on providing help for charities and to donate some portions of the money to people in needs. That is why lotto in our country is still alive and many people are still playing ball game, because mainly if the lotto is focused on just earning profits, and government isn't benefiting from it, they might view it just a gambling platform that isn't healthy for the people.
These charities is just a cover up to sustain the issuance of the permit from the government office for them to continue in operations. Trust me, it always works that way. They earned a lot money from the people who buy lottery tickets yet the charities they gave back from the community are very limited and sometimes
unfair (specifically to those who have friends/relatives assigned in the office). That's how it works in my country.
I think your country situations very similar such as my country that decades ago when my government decide to legalize lottery they want particular percentages from the prize of lottery will be used for build public facilities and this plan only in the beginning good but when it was running for more than a year the lottery companies didn't give the money as their promised even the owners are more likely to corrupt the money prize so since that finally my government forbid the lottery and it happens until now