~ I am sure many more types of marketing strategies that will be more immoral from what we have already seen.
Immoral or not, it depends on how we see it. There are laws prohibiting unfair or deceptive practices in advertisement, but they are different in different countries. And is showing your real wins on slots unfair or deceptive? I don't think so. As with any other advertisement, it is we who can make it harmful for us, not the ad itself. Ads are annoying sometimes, and in other times they make us buy unnecessary things, but the world would be less funny without them. And these big wins on slots, in particular, some of them are really fun to watch.

That simply talks about money and even it was immoral, they let it happen as it was paid already. It is sometimes to think that was too unfair, yes, it was but have less possibility that we can change the nature of this place. Then rather we saying it was too unfair, too immoral, maybe it was best to ignore them than be a big deal to it.
It is actually annoying when we heard such complaints but can't just put blame on them alone, we do it for ourselves then for listening and choosing them.