Our CEO started sharing screenshots of his xitter/linkedin feeds and most of them contain wisdoms like "Opus 4.5 is better than 90% of talent". There is also longer form business fan fiction. It usually follows this template: there is a hero - a humble manager/sales person, and a villain - a cocky, nerdy software developer. The villain claims that some task is impossible or takes months to complete. Then the humble hero (equipped with Opus 4.5) completes the task in 2 hours. The villain is then humiliated/fired and everyone lives happily ever after.
These posts definitely contribute to the declining morale among employees. Nobody goes "above and beyond" anymore - we just strictly doing the tickets and nothing more.