It doesn't work like that.
First you have to be a vetted member of the inner circle, complete with your own file of sufficiently destructive blackmail evidence to ensure you are on equal grounds with the rest. Then the influence and black funds begin to flow out to the professional companies; certain payments are made, certain individuals are hired in middle-administration roles (possibly you and another operative) who begin to warp the smallest of details of a project up until someone eventually complains and you can begin to slowly weed out anyone who resists. They can then be replaced with your own people. Eventually the entire project has been compromised at the developmental level and will broadcast or display strategic portions of The Agenda. Over time, you and others from your intelligence organization may gain industry recognition, and some might even become well-respected and celebrated members of the community. This allows for exponential growth of The Agenda, even so far as to begin developing media that is nearly 100% propaganda hidden beneath a blanket of CGI animals and beloved Hollywood actors.