A lot of employers are not sane by this definition. I work at a bank and can't release anything, nor do we contribute back our patches to open source projects,

A lot of employers are not sane by this definition. I work at a bank and can't release anything, nor do we contribute back our patches to open source projects, because the management/approval/review cost is just so large and everybody's far too busy to do this kind of stuff. Company policy forbids us from posting on forums during working hours anyway. Unfortunately, I think this is common in finance, and perhaps to a lesser extent in embedded and a lot of other fields.