To me it is all relative. NCR taxes and levying troops into their armed forces is not "good" to me ... the Legion's slaving is not good to me, Mr. House's behind the scenes manipulation of the other families screams big brother to me as well. I see the closest to the "good" path being the isolationism of the BoS ... yet they are only a minor faction and can not be vaulted into power,
The BoS are far from "good". They are self-observed isolationists intent that think they are the only worthy carriers of a lot of the pasts technology, weapons in particular.
They do only help themselves, and have little inhibitions of killing whoever gets between them and their goals. They do nothing to contribute to the betterment of the wasteland.
They are not intent on taking control to tell people what to do, but they like to take military control to ensure their own safety,
They aren't good, never have been good and going by this latest quest line aren't inclined to change their tactics no matter what evidence is presented to them.
Mind you, I still like them, but wouldn't want them in control given their track record.