Why do you care? Are they forcing you to wager your money? Did they put a gun on your head? No. Whoever is falling for that scam and wagers more that he could afford to lose deserves to lose that money.
I bet most of the high rollers you see in the casino scoreboards are fakes. (maybe all of them)
OP should accept this fact when it comes to playing you are on your own, the gambling sites will lure you to play more with their giveaways cashback and freebies, it's on you if you are going to play with all your money, it's gambling and it's based luck you can win it all or lose it all, and there's no use blaming them, or you just don't want to blame yourself and feel sorry that you lose you turn your balming in the gambling site.