The only company I know of that is "doing it right" is Valve. Keeping themselves private really has paid off for them and has started to better the overall gaming community with their services, I think their cut might be a little high, but you do get a ton of value add as a dev.
Valve aren't so innocent themselves, they introduced the world of gambling to literal children through the marketplace of skins and Valve's tacit approval of 3rd party gambling sites.
I'm honestly surprised they never got raked over the coals by some up and coming State Attorney General, would be an easy win and easy political points.