"Dustin, I understand your concerns," Hank said with a smile.
"But I can promise you, as long as you stay loyal and don't betray the Hall of Gods, you won't be in danger. We highly value talent like yours. Honestly, the poison is just a safeguard to keep our secrets safe. I'm sure you understand."
Without taking the poison, there was no way to exert control, which meant trust would always be in question. This wasn't much of an issue with disposable operatives, but loyalty had to be guaranteed