You just need to understand that as long as the business is moving and there are still gamblers who continue to play using the site you will continue to earn your share, the sample calculations will be used as reference though the actual will be on the site and the team who offer this revenue share for all the investors.
Understanding the concept and continue doing business by playing and bringing your friends to play will help if you are also an investor who's willing to take the long road.
That is always a good thing but this creates a dilemma that has been talked here before. If we are making a profit from gamblers losing, that means the creators of this website are earning less from it, doesn't mean they get nothing, it just means they don't get 100% of it back, we are getting some of that.
However, if we are talking about marketing, then it is not done by us, which means while getting less money because we are getting a share, they also have to spend some of their money to also do marketing as well, which means even less left for them, and promotions and bonuses and expenses to run a casino etc etc. All in all, it causes a bit of trouble for the team for sure.