I had a long-haul flight last year and was sat next to a gentleman who worked for one of those betting companies in Europe who I had a chat with during the flight. The guy exuded pure sliminess from the minute he explained his job, and I couldn't believe the kinda crap he was proud of peddling to people.

It's a good grift unfortunately, an insane amount of money is involved in it as is usually the case with these sorts of morally bankrupt endeavors.