An AI that "valued" keeping the world looking roughly the way it does now, that was specifically instructed never to seize control of more than X number of each of several thousand different kinds of resources, and whose principal intended activity was to search for, hunt down, and destroy AIs that seemed to be growing too powerful too quickly might be an acceptable risk.

This would not be acceptable to me, since I hope to be one of those AIs.

The morals of FAI theory don't mesh well at all with the morals of transhumanism. This is surprising, since the people talking about FAI are well aware of transhumanist ideas. It's as if people compartmentalize them and think about only one or the other at a time.