Everthing we have survives because people want to use it...

guns
gambling dens
war
snowmobiles
money
monster trucks
Coca Cola
etc.

Various people want to make use of all these things, therefore we see these things happening around us.

The question is, should a government encourage something like the gambling industry? I don't know what's happening in the UK, but in North America the local and regional governments are making a lot of money now in connection with lotteries and gambling, moreso than in the past...therefore there is, I think, a conflict of interest there, and one that does present a serious moral problem.

As do our undeclared wars....but that's another issue.