If I would have to choose to that, I would choose the richest profession because bitcoin is not permanent and we don't know when it will last and a profession is permanent as long as you live. But I think I will invest to bitcoin too to earn more income.
What do you think is the richest profession then?
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-profession