But there are consequences to that.
Cases in Nevada are growing very quickly now. And if the cases don't stop to rise state authorities will have to lock down Las Vegas again.

The pandemia is still very active. I think they'll have to close Las Vegas soon if things don't stop to get worse.

It keeps happening.
https://www.rgj.com/story/news/2020/07/25/live-updates-coronavirus-covid-cases-in-washoe-county-nevada-reno-las-vegas/5507570002/New cases and it is breaking records. We all know the possibility of this happening but I think it will continue to increase over 40K cases if they don't put some measure to keep the number increasing. Is it the people or it is just that the government doesn't care?
As @deisik said, the government already did their job and it all lies to the people whether they care about themselves or they just wanted do do what they want. The fact that we are seeing the cases increasing means people won't stop gambling and maybe they think this is how they will help with the economy.