I've seen it particularly when it's about things that are (or seem to be) important but the business has neglected supporting the team accordingly. When you're in this position and don't have a good place to quickly jump to it's easy to think "I'll just put in as much as they do and live on" but when something goes wrong and that team is the only one that can fix important (or "important") thing inevitably many just go through extremely stressful situations.