Whales do exist but it would not mean they can easily exploit a gambling site, they have bigger bankroll which gives them bigger risk to take. That's how game is fairly played, people risk an amount to win an amount and it's like make money out from your money. They have their own way of making money and I can say it's risky since only a certain number of gamblers succeeded over the total gamblers.
Maybe let's call them the gifted one, they make easy money because they love to take bigger risk and they use their intelligence to make fortune.
No they don't make easy money. The odds of them winning is just the same as ours. If they are betting 1
BTC per game and you bet 1mBtc per game, it doesn't make any difference other than the bet amount. In a way, they are the same as you. You're taking the same amount of risk.
Whales aren't necessarily intelligent since most rich people only inherited their money from their family. Those that recklessly throw away their money in gambling surely did not work hard to get them or maybe did not work at all to have money.
Agreed, most of the whales earned their money from a very ilegal way and they are invovled in some bad activities, it's not necessary that they are smart or something like that.