Hacking or being a hacker isn't a profession. Do you think robbery shall be called a profession?
And those robbers shall be called as professionals? No it's not the richest profession.
Robbers are everywhere, corrupt people, easy money that makes them rich.
But their money will be gone easily, believe me.
Hacking is a profession. There are two types of hackers. I guess you just focused more on the unethical hacker. You forgot about the white hats ( ethical hackers ) that helps government develop system securities.
This would support it.
https://www.quora.com/Is-hacking-a-professionHey cotton guy thanks for clearing that. Yes I'm only focused with the bad side of hacking.
I nearly forgot that there are white hat hackers that are also helping to make security tighter.
But for those unethical robbers/hackers, it's not a profession or if it is. It's a profession of a lazy person.