In body building though you can cheat at home, months or years before anyone even knows your name. To cheat at a chess tournament you have to do it on site. It's a little harder...
Plus there are levels of cheating. If someone is just copying the engine like a total moron (like B.Ivanov) then they'll be kicked out and banned easily.
Its interesting to contemplate in lower level tournaments. but I was thinking more about major tournaments.
Also, people who say there is no point in cheating and no motivation to do so unless there is money on the line, I think are wrong. There are always cheaters.
I was on a bodybuilding/weightlifting forum where people would talk about the use of steroids and PEDs (performance enhancing drugs) before competition. These competitions offer nothing but a trophy.
To make matters worse, there are "drug free" competitions to separate people who obviously use PEDs from people who want to be natural. The discussions I was reading were about people using PEDs to prepare for DRUG FREE competitions!
And to make matters even worse than that, the people discussing this were WOMEN.