As Alex said, if there was foul play, then Hampden's referee, who was a disciple of Rowbotham had every opportunity to protest. There were checks against this supposed corruption you are asserting. Now stop being merely indignant and show something that indicates Wallace did anything in the experiment that makes it invalid. Tom, physical facts do not change depending on a moral point if view. If anyone fails in this ethics class it is Tom since he is mistaking the result of the experiment with the ethics of the situation.
I agree that Wallace did not perform the experiment was undertaken in a less than ideal situation.
I see no evidence that, in this case, it made a difference. Both referees agreed upon the results. Wallace already had a reputation as a surveyor, which you fail to mention as a mitigating factor, which would severely damage his future if he were found to be cheating; perhaps more damaging than missing a years pay. Upon being called a cheater by Hampden, it was found that this characterization of Wallace was a damaging misrepresentation. The abstract ethical principle you are pushing aside, Tom, there is no good evidence to suspect the experiment's integrity.
Ad Hominem attacks are also unethical debating tactics, so stop using them.