experience of using narcissistic parents' flying monkey recruiting and smear campaign as people filter

my narc parents will contact everyone of my important professional networks, motivated by the selfish purpose of sabotaging my career, isolating me and keeping me dependent.

i have heard that those narcissists naturally attract people who also have narc tendencies or are simply idiots and can be effective for filtering out people not worth working with and building friendship with. in practice, has anyone effectively used their flying monkey recruitment and smear campaign as people filter? what kind of career allows one to use it to its full? what are the practical implications of implementing that