The point of the conversation was about which is more stressful. Obviously having "more skin in the game" would directly increase the stress levels but yourself and others who posted like you completely miss the point that the ATCs are there to ensure safe travel and they very much are invested in that mission too. Comments like "well they're not going to die so why would they lose their cool" are just harsh and entirely miss the point of why the ATC are there in the first place.

The key reason for why ATC don't lose their cool has nothing to do with who is more stressed or has more "skin in the game" and everything to do with the fact that if ATC lose their cool then the pilot is more likely to die... and possibly other planes and their passengers and crew too. In order to save lives ATC have to keep their cool even when everyone else around them panics. That's the real crux of the matter.