I mean I guess, but it's not like the NCR is presented as shiny and picturesque to begin with. They're shown to be incompetent, hiring a fuckup like Fantastic at Helios One, they have you shoot to kill three crucified soldiers in Nelson because they don't want to attempt a rescue, Thomas Hildern has sent who knows how many people to die in Vault 22 all for some Operation Paperclip-like research, pretty much everyone talks about how the government is ran by Brahmin barons and how they're expansion into the Mojave is basically just an ego trip for Kimball, they literally are set to lose to the Legion without Courier intervention because General Oliver let the first battle of Hoover Dam get to their head, General Oliver is a fool who's only General over Hsu because of favoritism from Kimball, they sit by and watch Primm get sacked by raiders because they're stretched too thin, they want to slaughter the Khans in Boulder City regardless if the Courier set up a deal to let them and the hostages go. I can go on. The NCR is full of good people ruled by pathetic corrupt weirdos, that's the point. Just because they don't overtly shoot water drinkers doesn't make them wholly innocent.