To be fair to Elias(Massive spoilers)

Being bound to the institute gives you pretty stable employment with the guarantee that you won’t get fired, and in a time where people are worried more than ever about finding stable employment, the guarantee that you won’t ever get fired even if you try to kill your boss is a pretty good perk. And when the apocalypse inevitably comes around, you may get it easier than everyone else as a Thank you from our favourite 400 year old all seeing twink