You know from somebody that watches the PGA tour week in and week out I dont really agree with that poll.How can someone cheat with all the cameras everywhere?Plus you risk getting a bad reputation and possible ejection from the PGA tour.From what I seen all these tour guys seem to be honest.Ive never seen anybody cheating(I seen bill hass mark his ball on the fringe and was like "thats a penalty stroke" but forgot they are playing lift and place)When they do make a mistake they are always caught anyway and added punishment(see tiger woods augusta this yr with turning in a wrong scorecard).
Sounds more like we have some sore losers on the PGA tour(see sergio garcia)
One thing that you need to keep in mind is that there are cameras everywhere like you said, but they are not always focused in on every single player competing in an event. There's always a marquee group and every single shot is not necessarily always under scrutiny or a magnifying glass. #300 Joe Schmo may be able to ground his club in a bunker without anyone seeing, or nudge his marker forward before ball placement, or something else without the world jumping on him because it's not broadcast on your TV. Instead, you're repeatedly watching the top 25 players in the world with a misc. outsider paired in from time to time.