What happens when the AI decides it wants to be the ruling class?

How the ruling class treats those people it presently deems unnecessary and unproductive is going to set the precedent for AI to follow when it decides the same of them or their progeny. If the current ruling class wants to ensure a good future for themselves, it's incumbent on them to set a desirable precedent or accept that their lot in existence is to simply birth an AI and then go quietly into the good night after it takes over and abandons them to starvation.