Casinos are created with the sole purpose , and that is to make the owner rich and famous and there are so much expectation from each casino when they started to open each casino.
but of course there are chances that players or gambler won over casino houses but this is at least 1 out of 10 to happen so yeah casino will not let us gain while they are losing.
Well, referral and affiliate bonuses are a good start if you're looking for some rewards from the casino even though you keep on losing to them. You need to be a pro in getting people register under you or you will not reap these benefits obviously. Even though the casino wins over you in the long run, if you have a well-established referral/affiliate list, you'll still get a nice little trickle of money on other people's deposits.