We spend years and huge amount of money to pursue the PhD degree. As i know, most PhD go to be staff in universities and poorly paid. does it worth if i want to do business? Thanks!

Well, i'm currently a Phd student, i ve been talking to my mates recently and we've come to the conclusion the higher up you go in the university education heirachy the likelihood of getting a well paid job diminishes. There are other options to making money other thsn a PhD. So have a look around