Lot's of people find gambling itself immoral but people gamble anyway.
If you think showing fake high stake players is unethical, then most people that gamble are also being tricked because most of them think gambling as a job. The players should lose in the long run because that's the only way for the casino/house to keep doing their business.
The important point is that basically everyone's thinking is different depending on the perspective they experience.
like you said that if you say a lot of people think gambling is something despicable so it's not a good thing to do.
but for others gambling is a blessing because they can make unexpected profits by selling their luck.
actually this depends on each person who judges. something that is good in our eyes is not necessarily good in the eyes of others