In many companies, your career will stagnate if you don't put in at least 50 hours per week. You might even get fired. Of course, no one will express the specif

In many companies, your career will stagnate if you don't put in at least 50 hours per week. You might even get fired. Of course, no one will express the specific reason, but your reputation will fall and eventually you'll get hosed. Also, most large companies are horrible about looking out for employees' advancement and education, so people who want any of that have to do it on their own time.