People not "in" are just sheep to them - but if you make a good impression on the cult they may "open your eyes" and invite you in - or they may just fuck you over 20 different ways at their pleasure. The cult usually targets people for goals - they try and take over bloodlines and take over companies - they do this by infiltrating and knowing who their allies are - often using their names as a first check. An AB for example is a code like this section of south park - which they know quite a bit themselves but that's a longer story.
Anyway, the first check is a name and then usually they will have a green tattoo of a tree or something to indicate they are a plant - or green hair sometimes or a green ring - something to say without saying "I'm a plant, hire me' then they help each other and take over the business - it's their own little club and it's fucking everywhere.
They also go after military for the filming - I met 2 of them at the facility but there's surely more - people who pissed off the cult by killing the wrong baddy - a lot of things could get you on their shit list to be made into a show