Why do people get into cybercrime?

Because that's where the money is:

An analysis of the finances and operation of a ransomware outfit has shown it's entirely possible bankroll a modest-sized crime gang on victims' payoffs. 

Dark web monitoring firm Flashpoint has been following a ransomware-as-a-service campaign organized by Russian crooks since December 2015, tracking the recruitment of associates, distribution of the malware, and payment processes.  

... 

The investigators found there were an average of 30 ransom payments made every month, netting the boss around $90,000 a year and his affiliates about $600 a month, although that varied depending on how successful they were at infecting systems. Larger ransomware gangs will trouser far larger sums, of course, as much as $90,000 a week or more.

Of course, you would only use your Powers for good ...