Mercury in Virgo can be blinded by the details.
My cousin is a Libra [ Sun conjunct Jupiter] with Venus/Mercury in Virgo. She is very intelligent and became an office manager at a young age and moved quickly up the corporate ladder. One of the main reasons was her ability to manage fine details and get numbers up. She could always find money leaks and wasteful behaviors and fix them and increase profit margins.
But as she became higher up, office politics became difficult for her. She had trouble seeing the 'big picture' and made enemies at times by nitpicking in a critical way. The people she was now criticizing and nitpicking were CEO's and financial controllers, not just other office managers/supervisors. But she could not look away from little details that bothered her and continued to be at odds with her superiors when they denied or rejected her ideas/suggestions.
She retired early.