But the casino must provide at least 2 different competitions where competition is separated from gamblers who have limited funds and gamblers who have more funds because if it is equalized then small gamblers who only play with less limited funds may not be able to survive the competition ongoing.
All types of development that will be carried out by casinos must be considered and processed carefully so that all gamblers, from small gamblers to big gamblers, can all benefit.
Remember that this is not a charity tournament or an official tournament which user need to be in same tier to have a fair fight. This is a casino competition and the goal for this activity is to push players to spend more to get the rewards. Casino is not obligated to reward all the players especially small time players because they are business and this competition is just their of marketing.
You will get a reward based on your contribution and don’t expect to get a huge return when you are just investing small amount.
You are right that casino is not a charity but it is not wrong for casino to give good rewards for small time gamblers from a tournament or competition. Duelbits did it in the past with multiplier contest every single week in this forum where participants can win nice reward. I have to agree with tusandii's suggestion that casino should care about both small and big gamblers as it is how a casino build their community.