Man, if you don't think TV executives would be willing to pull some shit like this, you're delusional. They WOULD be worried about somebody breaking FCC rules or putting them in a situation that would leave them legally vulnerable, but if you think they wouldn't be actively malicious when it means higher viewership numbers, you are dead wrong.
There was a Japanese dude who signed up for a show called "A Life of Prizes" where he was sequestered in an apartment and had to earn some amount equivalent amount of Yen in prizes from write in sweepstakes in order to win. It took him a long time, but once he finished it he got a day of freedom in Korea, and then was forced to go through the same shit in a foreign country in order to pay his way back home.
If you think they draw the line at being openly sadistic, you are being a moron. They absolutely would do just this if they could get away with this type of shit without the potential legal issues.