With compters you don't need people. You only need programmers who tell the computers what to do. In a weird way you can think of it like a virus. Everyone who loads the virus on their computer (unexpectedly) has bad things happen.
The server can load a virus into the slot machine and make is pay out less randomly. Everyone playing is involved.
I mean if you don't trust the casinos and basically feel they are out to win at all costs, then all this is very plausable.
If I was a casino owner why wouldn't I want to have this control and move in this direction? The worst that can happen is I make a ton O money.
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Retired Guy