Why do you want all of your employees to be the ones most resilient to stress?
Are you hiring for a fire department? The Navy Seals? Engineering section on a nuclear submarine?
Maybe, just maybe, things would improve if you had a few people who said 'no way' when someone tries to crank up the drama on your team instead of just grinning and bearing it.
Capitalists don't reward the quiet workers. They exploit them. Billionaires and wannabees do it remorselessly.