What is the role of the last sentence, 'For a nation which has always been the favored child of abundance, and where power, at least in the 'pioneer years' flowed from the barrel of the gun, much has always been there for the asking, and the rest could be obtained by force, it is easy to be moral' in the passage?

Directions: Answer the given question based on the following passage:

Like ethics, morality, in whatever degree it exists in a mortal, sits rather easy on their wearer’s shoulders. A rascal would perhaps recount with more sadistic glee of having made a sucker out of an unsuspecting soul, than how an upright and honest official would describe his stand against corruption and the efforts to corrupt him. For an ordinary Cuban citizen, trapped in a nation battling international embargoes of all sorts, the contest between morality aided by legality, and the need to stock one’s larder is really a no-show because morality does not fill hungry stomachs. One’s amenability to shedding one’s scruples grows in direct proportion to the shortage of what one is seeking. While an over-fed American, in his native country, might turn his nose up at non-organic lettuce, and choose instead to pick up his vegetables from a store that sells ‘certified organic only’, a sterner test of his resolution would only be possible in a setting when, let’s say, he is staying in Cuba for an year. For a nation which has always been the favored child of abundance, and where power, at least in the ‘pioneer years’ flowed from the barrel of the gun, much has always been there for the asking, and the rest was obtained by force, it is easy to be moral.