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Most people nowadays don't care about sin, what they want is money and satisfaction because with money you can solve every problem in the world and satisfaction make you know why you need to live long.
It is a fact that most gamblers today are also people who worship every week or pray every day, but they prefer to continue gambling because they think that gambling is a normal activity and even though their religion prohibits it, they think that it is a venial sin - so it doesn't bother them too much.