...it was WikiLeaks that unleashed a tool of destruction without notifying journalists or governments first because they think themselves agents of chaos.
WikiLeaks wasn't involved in this. There was a cracker group who got the exploits from a NSA contractor. First, the group sold the exploits for a large amount of money. Around this time someone notified MS, probably the NSA, and MS fixed the bug. Then about a month later the cracker group released the exploit for all for free.
Obviously, the next step is for someone to 'weaponize' the exploit. Put ransomware into it or carry out some vendetta or blackmail. That's what this malware is. Someone did the next logical step and made a weapon out of the exploit.