Wikileaks releases source material. Corporate mass media does some investigative journalism, while manufacturing consent and generating clickbait.
Seriously, the notion that "media" does anything is preposterous. Even if you think they want to manufacture consent, it's pretty obvious there is nothing near consensus amongst themselves. Everyone who writes news can make mistakes or let bias slip in, but that's not a conspiracy.
On the flip side, Assange was always pretty upfront about how he did his work for his own agenda. Anything he ever published that actually helped people was purely coincidental.
https://theintercept.com/2018/02/14/julian-assange-wikileaks...