It’s explored in fiction sometimes. Asimov did something similar a couple of times, such as with his “zeroth law” concept. The I, Robot movie features this as well. The Culture series is an example of this being portrayed positively.

It’s usually portrayed negatively. Partly because fiction needs conflict. But also because it’s seen as infantilizing, and maybe the machine’s idea of a perfect society doesn’t match our own.

One theme of the Culture series is exploring how people deal with such a society, with some people fighting against what is basically secular heaven because they think being ruled by machines is inherently bad.

My reading of the Culture is that it is at best morally ambiguous. The Culture would extinguish entire civilizations that were no threat to it, simply because it was cheaper to do it before they'd developed further in a direction that could be a threat. If I was supposed to be cheering for the Culture I missed it.