Fair or unfair, it is gambling. And gambling is never a fine system.
So it should be avoided at any cost. If people themselves boycott such thing, then only unfair people (those whom you are mentioning), will put their own credits, and then win their own credits only. Those who seek fair game play should avoid such a thing just like i do.
But greed of more and quick credits won't let people (even fair people) stay away from this sort of gambling. So they have to pay for it, by losing their hard earned credits to the unfair people, lol.