In terms of what? Being a sopiopath who woulnt give a fuck what happens to people as long as he gets what he wants? His a scientist, not a social worker.
His quest about the contaminated water has him relying on a computer to give the sharecroppers the right amount of water and blaming the sharecroppers instead of investigating why they were underperforming. If the Courier lets the vault survivors die and saves the crops, then he says that the problem must have resolved itself. This means that he is probably also relying on a flawed computer model for his prediction of food shortages in a decade, like how Limits To Growth claimed that the world would run out of everything, but it didn't.
If the Courier deleted the data, then he says that thousands of people could die. The NCR had a population of 700,000 people in Fallout 2.
Misinformation to the different NCR outposts, the guy has 0 reasons to lie about this to the player.
Hanlon does lie initially, before the Courier tells him what they know.
So now we cant even rely on people who work the land, great to know.
A 40-acre farm in a place as vast as California having string of bad harvests does not mean that the NCR is going to run out of food in a decade. O'Hanrahan is the most reliable of the three.
Their right next to the biggest farm in the Mojave and theres a giant metal tube pumping water to them, what does this have to do with food shortages of an ever expanding empire with no real solution outside of getting even bigger?
If the NCR actually had shortages of food and water, then the Mojave would be exporting the excess food and water to the NCR's core territories, and more characters would mention it instead of just talking about the NCR's taxes and inflation. The war is also seen as an unpopular foreign adventure.