I'm sure that would make provocative sci-fi. We, as a people, haven't figured out to how to get along with each other even though we're all sentient. Why should machines behave differently as they become sentient?

Whatever the case, I'm less worried about machines than I am about people with machines. At least for the foreseeable future.

Heck, if we're talking sci-fi, the _truly_ destructive beings in Blade Runner weren't the synthetic humans (even though they became sentient), it was the "real" humans with their organizations, their power, and their machines all at their disposal.