Yes, in my opinion there is a good side and a bad side, in some countries gambling are prohibited and the user can even be arrested, on the other hand gambling can help the country's economy to develop and attract tourists, for example Las Vegas
Gambling can only help the economy if the owner will legalize their business and submit all necessary requirements to get a license as well pay all the taxes without doing any illegalities when it comes in their obligations to the government. But what if she other greedy businessmen who didn't comply those important things and all pay corrupt politician as a bribe for their protection do you think it's beneficial to the countries economy?