In globalisation:
The house is: the first world strong government who have nuclear weapon
The gambler is: the third world weak government, the corrupted government, the small and helpless government.
In third world country:
The house is: the corrupt government, political class, the wealthy businessmen, the public employees.
The gambler is: middle class, delusional small entrepreneurs, everyone else who believe in the classes of the first group (house).
But talking about gambling specifically, it should be well known it's not an activity or hobby for everyone. It's mainly for those who already have a fixed income and can spare a lot of money without taking serious risks.