I'm a whale and I don't feel exploited. I don't like gambling but I like buying chests. People spending money on trips or cars, things I have no interest in, are also exploited in that case.
No, in most games I know what I'm getting so there's no randomness. I buy a chest of 1000 gems in order to buy X in game. How is that gambling? Sure, some games force the randomness on me through chests with unknown content but that's not what I'm paying for.