Same thing goes here in hardware industry. Having Ph.D. does not indicate how good they are. It really depends on individuals and their mindsets. Ph.D. with specialized major anyway have learn things over at new workplace. So whoever catch up fast and do hard with 'i will contribute this' attitude makes better results.
Someone may argue about this but people with less advanced degree tend to obey more to management.
Someone may argue about this but people with less advanced degree tend to obey more to management.