Petty Cruelty in the World's Greatest Country?

"No, this is about petty cruelty turned into a principle of government. It’s about privileged people who look at the less fortunate and don’t think, “There but for the grace of God go I”; they just see a bunch of losers. They don’t want to help the less fortunate; in fact, they get angry at the very idea of public aid that makes those losers a bit less miserable.

And these are the people now running America." Paul Krugman. NYTimes.

This is a clear article to read, but I wonder why anyone wants to see people starve and suffer?  What values have generated in such a social climate that the Republicans and Trump supporters are for this. Are people generally this cruel or is the state simply manufacturing consent? How does this benefit the American nation?