self-perpetuating 
adjective
Perpetuating itself or oneself without external agency or intervention: the self-perpetuating power of the bureaucracy...
- They are self-perpetuating power centers of our colleges and universities.
- This state power is an ever-present self-perpetuating body over and above society.
- Meanwhile at the top, those wonderful universities that pay such fantastic salaries to their academics, are producing a new class of rich who are becoming self-perpetuating.
Derivatives
self-perpetuation
- These parties see their self-perpetuation in the narrowest of dimensions, largely by allowing business interests too great a say in local, state and national agendas.
- These are the people whose careers revolve around self-preservation and self-perpetuation, who never take risks and are the slaves of the pollsters.
- Is the object of the game abolition, or self-perpetuation?