That's not honesty, it's assumption. Yes, they make huge amount of moneys, so there may be an incentive to "cheat". But there is also an incentive not to cheat.

That's not honesty, it's assumption. Yes, they make huge amount of moneys, so there may be an incentive to "cheat". But there is also an incentive not to cheat. Getting caught cheating in that way destroys reputations and careers. I used to bodybuild. I worked out 60-90 minutes 4-5 days a week. I ate around 3500 calories a day. My starting physique is naturally slim. I got up to 230 pounds with 9% body fat in about ten months. That was about half the working out and 70% of the eating that The Rock is doing. With his workout and diet I could make 260 pounds. It's probably even easier for him as he's four inches taller than my 6'1".